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龍有文——中國科學(xué)院物理研究所研究員

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龍有文 ，男，中國科學(xué)院物理研究所研究員，博士生導(dǎo)師。2007年中科院物理研究所博士，2007-2011年日本京都大學(xué)、理化學(xué)研究所博士后，2011年9月加入物理所。國家重點(diǎn)研發(fā)計劃項(xiàng)目首席，青年973首席科學(xué)家，國家自然科學(xué)基金委重點(diǎn)項(xiàng)目、北京市重點(diǎn)專項(xiàng)等負(fù)責(zé)人。現(xiàn)任磁學(xué)國家重點(diǎn)實(shí)驗(yàn)室主任，M08課題組長，中國晶體學(xué)會理事，極端條件晶體材料專委會副主任委員，中國物理學(xué)會電介質(zhì)物理專委會委員，中國化學(xué)會高壓化學(xué)專委會委員，榮獲北京市自然科學(xué)獎一等獎（排名第二）。

一直從事磁電多功能材料的高壓合成、常壓與高壓物理性質(zhì)、結(jié)構(gòu)與物性關(guān)系、多場調(diào)控下的結(jié)構(gòu)與電子態(tài)等研究工作，并突破技術(shù)瓶頸發(fā)明了國際領(lǐng)先的大體積高壓單晶生長方法。利用高壓實(shí)驗(yàn)技術(shù)，獲得了三十余種新型過渡金屬氧化物功能材料，觀察到一系列引人入勝的物理現(xiàn)象，諸如Mott體的絕緣體-金屬化相變、金屬間電荷轉(zhuǎn)移、磁電多鐵性與磁電耦合、高溫磁性半金屬與半導(dǎo)體、負(fù)熱膨脹等等。在Nature、Nat. Commun.、Phys. Rev. Lett.、J. Am. Chem. Soc.、Adv. Mater.、Nano Lett.等期刊上發(fā)表學(xué)術(shù)論文130余篇，包括特邀綜述8篇，20篇被Nature、PRL、JACS、AM等選為封面、亮點(diǎn)或編輯推薦。在國內(nèi)外重要會議上做Keynote等特邀報告40余次，在新材料制備與器件設(shè)計方面已授權(quán)國內(nèi)外發(fā)明專利13項(xiàng)。作為大會秘書合作舉辦了第26屆國際高壓科學(xué)與技術(shù)大會、第6屆亞洲高壓研討會等多個國內(nèi)外會議。

教育與工作經(jīng)歷：

2011.9 – 至今：中科院物理研究所，研究員。

2009.8 - 2011.7 ：日本理化學(xué)研究所（Y. Tokura 研究組），博士后。

2007.9 - 2009.7：日本京都大學(xué)化學(xué)研究所（Y. Shimakawa 研究組），博士后。

2002.9 - 2007.8：中科院物理研究所碩博連讀，博士學(xué)位。

1998.9 - 2002.7 ：湖南師范大學(xué)物理系，學(xué)士學(xué)位。

學(xué)術(shù)兼職：

1、中國晶體學(xué)會，理事。

2、中國晶體學(xué)會極端條件晶體材料專業(yè)委員會，副主任委員。

3、中國科協(xié)先進(jìn)材料學(xué)會聯(lián)合體青年工作委員會，委員。

4、中國物理學(xué)會電介質(zhì)物理專業(yè)委員會，委員。

5、中國化學(xué)會高壓化學(xué)專業(yè)委員會，委員。

6、國家脈沖強(qiáng)磁場科學(xué)中心用戶委員會，委員。

7、《高壓物理學(xué)報》編委會，委員。

主要研究方向：

電子具有電荷、自旋、軌道等三個重要自由度。如何把電荷與自旋屬性耦合到同一單相材料中，形成磁場及電場可調(diào)控的磁電耦合多功能材料，是研制未來先進(jìn)電子器件的關(guān)鍵。由于常壓下能夠形成的材料體系是有限的，為獲得重大進(jìn)展，本課題組致力于突破常規(guī)材料制備限制，發(fā)展國際領(lǐng)先的高壓高溫等超常規(guī)制備方法，通過設(shè)計特殊晶體結(jié)構(gòu)與過渡金屬離子組合，研制常規(guī)條件下不能形成的新型磁電熱多功能材料，透徹研究新材料的結(jié)構(gòu)與綜合物理性質(zhì)，發(fā)掘內(nèi)在的結(jié)構(gòu)-性能關(guān)系，為面向應(yīng)用的多功能耦合電子器件的研究提供潛在材料基礎(chǔ)。

1. 新型磁電量子功能材料的高壓制備與物性研究。

本方向結(jié)合前沿探索與潛在應(yīng)用，發(fā)揮高壓高溫合成條件不可替代的研究優(yōu)勢，制備常規(guī)條件下不存在的新型磁電量子功能材料，包括磁電多鐵性材料、高性能磁性半金屬、高溫磁性半導(dǎo)體、拓?fù)浯烹姴牧系鹊龋l(fā)現(xiàn)新現(xiàn)象與新效應(yīng)，促進(jìn)潛在的實(shí)際應(yīng)用。

2. 大體積磁電單晶材料的高壓生長與物理。

單晶是研究材料本征物理性質(zhì)及面向應(yīng)用的最佳體系，大體積高壓單晶生長是長期困擾研究人員的國際難題，本方向突破技術(shù)瓶頸發(fā)展國際領(lǐng)先的大體積高壓單晶生長方法，制備新型磁電單晶材料并研究物質(zhì)的內(nèi)秉性能，利用功能晶體構(gòu)筑可能的電子元器件。

3. 新奇電子態(tài)化合物的多場調(diào)控

高壓既是重要的材料制備方法，也是有效的性能調(diào)控方法，本方向通過原位高壓壓縮原子間距、增強(qiáng)軌道雜化、擴(kuò)展能帶寬度等方式，并結(jié)合溫度、磁場、電場、光場等綜合條件，研究多元外場調(diào)控下的新穎量子效應(yīng)與新奇物態(tài)。

4. 負(fù)熱膨脹新材料探索、調(diào)控與機(jī)理

熱脹冷縮是電子器件應(yīng)用過程中需要避免但又普遍存在的問題，負(fù)熱膨脹（即熱縮冷脹）材料的出現(xiàn)為調(diào)控其熱膨脹系數(shù)提供了解決方案。本方向立足于磁電相關(guān)負(fù)熱膨脹材料基礎(chǔ)與應(yīng)用前沿，發(fā)揮本課題組高溫高壓合成優(yōu)勢，探索新型的熱膨脹可控的磁、電、熱多功能材料體系，闡明相關(guān)物理機(jī)制與潛在應(yīng)用。

5. 磁性材料的中子和X射線散射研究

中子和X射線散射是研究磁性材料微觀物性的前沿手段，依托中子源和同步輻射光源等大型科學(xué)裝置，能夠提供電子多自由度的相關(guān)信息。本方向利用多種中子和X射線散射手段，精細(xì)測量磁性材料的磁有序、電子軌道貢獻(xiàn)和各類元激發(fā)，并據(jù)此確定體系的哈密頓量，從而有效探索其奇異物性的微觀機(jī)理。

承擔(dān)科研項(xiàng)目情況：

國家重點(diǎn)研發(fā)計劃、基金委重點(diǎn)項(xiàng)目、北京市重點(diǎn)專項(xiàng)等。

科研成果： 　　

一直從事磁電多功能材料的高壓合成、常壓與高壓物理性質(zhì)、結(jié)構(gòu)與物性關(guān)系、多場調(diào)控下的結(jié)構(gòu)與電子態(tài)等研究工作，并突破技術(shù)瓶頸發(fā)明了國際領(lǐng)先的大體積高壓單晶生長方法。利用高壓實(shí)驗(yàn)技術(shù)，獲得了三十余種新型過渡金屬氧化物功能材料，觀察到一系列引人入勝的物理現(xiàn)象，諸如Mott體的絕緣體-金屬化相變、金屬間電荷轉(zhuǎn)移、磁電多鐵性與磁電耦合、磁電拓?fù)湮镄浴⒏邷卮判园虢饘倥c半導(dǎo)體、負(fù)熱膨脹等等。在Nature、Nat. Commun.、Phys. Rev. Lett.、J. Am. Chem. Soc.、Adv. Mater.、Nano Lett.等期刊上發(fā)表學(xué)術(shù)論文130余篇，包括特邀綜述8篇，單篇最高他引300余次。相關(guān)工作入選Nature封內(nèi)推薦論文、被JACS、Adv. Mater.、Chem. Mater.、Inorg. Chem.等選為封面或封二論文、被Phys. Rev. Lett.、NPG Asia Mater.、PRB、APL、APS Physics等選為編輯推薦或研究亮點(diǎn)，被JPCM推薦為年度亮點(diǎn)論文（5%入選率）。在國內(nèi)外重要會議上做Keynote等特邀報告40余次，在新材料制備與器件設(shè)計方面已授權(quán)國內(nèi)外發(fā)明專利13項(xiàng)。作為大會秘書合作舉辦了第26屆國際高壓科學(xué)與技術(shù)大會、第6屆亞洲高壓研討會等多個國內(nèi)外會議。

研究課題及展望：

科技突破與社會發(fā)展很大程度上取決于先進(jìn)功能材料的發(fā)現(xiàn)與更新。在常規(guī)燒結(jié)條件下，新材料的研制已變得越來越難。高壓作為一種重要的極端條件手段，為尋找特殊性能的功能材料提供了豐富的來源。因此，利用高壓高溫等超常規(guī)合成手段，是目前新材料探索領(lǐng)域內(nèi)具有重要戰(zhàn)略意義的發(fā)展方向。我們長期致力于發(fā)展極端的制備條件，以得到基礎(chǔ)研究與應(yīng)用研究并重的新型功能材料。同時，運(yùn)用多種調(diào)控手段研究物質(zhì)的晶體結(jié)構(gòu)與電子性質(zhì)，發(fā)掘結(jié)構(gòu)-物性關(guān)系，以便設(shè)計特殊性能的新型材料。本人受科技部、基金委、中科院、北京市等項(xiàng)目的支持，正開展這些實(shí)驗(yàn)?zāi)蹜B(tài)物理與材料科學(xué)的前沿研究工作。

國外發(fā)明專利

1. A-site ordered perovskite-type oxide

龍有文，島川裕一，林直顕，薺藤高志，東正樹，村中重利

專利號：2009050505，國際公開日：2010.9.10，日本專利（國際公開）

發(fā)明公開：

[1]龍有文, 趙浩婷. 鐵磁強(qiáng)絕緣材料及其制備方法[P]. 北京市: CN117637275A, 2024-03-01.

[2]龍有文, 盧達(dá)標(biāo). 磁場可調(diào)控的位移型鐵電體及其制備方法[P]. 北京市: CN117479814A, 2024-01-30.

[3]龍有文, 劉哲宏. 具有高居里溫度的四重鈣鈦礦材料及其制備方法[P]. 北京市: CN117430168A, 2024-01-23.

[4]龍有文, 趙浩婷. 零膨脹材料及其制備方法[P]. 北京市: CN117401723A, 2024-01-16.

[5]龍有文, 周龍, 王瀟. 磁電耦合多鐵材料及其制備方法[P]. 北京市: CN116240629A, 2023-06-09.

[6]龍有文, 周博文. 鐵電光伏半導(dǎo)體材料Hg_0.75Pb_0.25MnO₃及其制備方法和應(yīng)用[P]. 北京市: CN115842065A, 2023-03-24.

[7]龍有文, 葉旭斌, 劉哲宏. 四重鈣鈦礦氧化物及其制備方法和用途、電解水的方法[P]. 北京市: CN115074747A, 2022-09-20.

[8]龍有文, 周博文, 葉旭斌. 鐵磁性熒光材料Sr₂CrFeO_5.75及其制備方法[P]. 北京市: CN112175614A, 2021-01-05.

[9]龍有文, 戴建洪. 低熱導(dǎo)金屬性材料及其制備方法[P]. 北京市: CN111689531A, 2020-09-22.

[10]龍有文, 劉哲宏. 亞鐵磁性半金屬及其制備方法[P]. 北京市: CN111574199A, 2020-08-25.

[11]龍有文, 申旭東. 白鎢礦相的DyCrO₄在磁電傳感器單元中的應(yīng)用、磁電傳感器單元及其制備方法[P]. 北京市: CN110426656A, 2019-11-08.

[12]龍有文, 王瀟. 一種亞鐵磁性半導(dǎo)體LaCu₃Fe₂Os₂O₁₂及其制備方法[P]. 北京市: CN109166686A, 2019-01-08.

[13]龍有文, 王瀟, 殷云宇. 亞鐵磁性半金屬NaCu₃Fe₂Os₂O₁₂及其制備方法[P]. 北京: CN107162068A, 2017-09-15.

[14]龍有文, 鄧宏芟, 殷云宇. 高溫亞鐵磁半導(dǎo)體CaCu₃Fe₂Os₂O₁₂及其制備方法[P]. 北京: CN104844162A, 2015-08-19.

[15]龍有文, 楊俊葉, 殷云宇. 一種大體積高壓氧化物單晶生長方法[P]. 北京: CN104746128A, 2015-07-01.

[16]龍有文, 周龍, 殷云宇. 一種新型磁電耦合多鐵性材料BiMn₃Cr₄O₁₂的制備方法[P]. 北京: CN104671755A, 2015-06-03.

[17]龍有文, 夏海亮, 楊俊葉, 殷云宇. 磁制冷材料CaFe_0.7Co_0.3O₃單晶及其制備方法[P]. 北京: CN104651937A, 2015-05-27.

[18]龍有文, 王瀟, 周龍, 殷云宇. 基于LaMn₃Cr₄O₁₂的鐵電單元和鐵電存儲器[P]. 北京: CN104659034A, 2015-05-27.

[19]龍有文, 楊留響, 靳常青. Sr_1-xCa_xCrO₃鈣鈦礦莫特化合物及其高壓高溫合成方法[P]. 北京: CN101307491, 2008-11-19.

[20]龍有文, 楊留響, 靳常青. 一種白鎢礦型DyCrO₄晶體及其高壓合成方法[P]. 北京: CN101307492, 2008-11-19.

[21]龍有文, 楊留響, 靳常青. 一種白鎢礦型YCrOO₄晶體及其高壓合成方法[P]. 北京: CN101307493, 2008-11-19.

發(fā)明授權(quán)：

[1]龍有文, 葉旭斌, 劉哲宏. 四重鈣鈦礦氧化物及其制備方法和用途、電解水的方法[P]. 北京市: CN115074747B, 2023-08-08.

[2]龍有文, 周博文, 葉旭斌. 鐵磁性熒光材料Sr₂CrFeO_5.75及其制備方法[P]. 北京市: CN112175614B, 2021-10-01.

[3]龍有文, 劉哲宏. 亞鐵磁性半金屬及其制備方法[P]. 北京市: CN111574199B, 2021-06-15.

[4]龍有文, 戴建洪. 低熱導(dǎo)金屬性材料及其制備方法[P]. 北京市: CN111689531B, 2021-05-25.

[5]龍有文, 申旭東. 白鎢礦相的DyCrO₄在磁電傳感器單元中的應(yīng)用、磁電傳感器單元及其制備方法[P]. 北京市: CN110426656B, 2021-04-27.

[6]龍有文, 王瀟. 一種亞鐵磁性半導(dǎo)體LaCu₃Fe₂Os₂O₁₂及其制備方法[P]. 北京市: CN109166686B, 2020-12-22.

[7]龍有文, 王瀟, 周龍, 殷云宇. 鐵電存儲單元的制備方法[P]. 北京市: CN104659034B, 2018-10-26.

[8]龍有文, 夏海亮, 楊俊葉, 殷云宇. 磁制冷材料CaFe_0.7Co_0.3O₃單晶及其制備方法[P]. 北京市: CN104651937B, 2018-01-05.

[9]龍有文, 鄧宏芟, 殷云宇. 高溫亞鐵磁半導(dǎo)體的制備方法[P]. 北京市: CN104844162B, 2017-05-10.

[10]龍有文, 周龍, 殷云宇. 一種磁電耦合多鐵性材料BiMn₃Cr₄O₁₂的制備方法發(fā)明授權(quán)[P]. 北京市: CN104671755B, 2017-01-18.

[11]龍有文, 楊留響, 靳常青. Sr_1-xCa_xCrO₃鈣鈦礦莫特化合物及其高壓高溫合成方法[P]. 北京市: CN101307491B, 2010-09-29.

發(fā)表論文：

138. Antiferroelectricity-induced negative thermal expansion in double perovskite Pb₂CoMoO₆

H. T. Zhao, Z. Pan, X. Shen, J. F. Zhao, D. B. Lu, J. Zhang, Z. W. Hu, C. Y. Kuo, C. T. Chen, T. S. Chan, C. J. Sahle, C. Dong, T. Nishikubo, T. Koike, Z. Y. Deng, J. W. Hong, R. Z. Yu*, P. Yu, M. Azuma, C. Q. Jin, and Y. W. Long*

Small 20, 2305219 (2024)

被選為卷首插頁（Frontispiece）

137. Exceptional magnetocaloric responses in a gadolinium silicate with strongly correlated spin disorder for sub-Kelvin magnetic cooling

Z. Y. Yang, J. Zhang, B. Liu, X. X. Zhang, D. B. Lu, H. T. Zhao, M. C. Pi, H. Z. Cui*, Y. J. Zeng*, Z. Pan, Y. Shen, S. L. Li, and Y. W. Long*

Advacned Science 11, 2306842 (2024)

136. Giant spin-induced electric polarization in absence of orbital order in (Bi_0.5Ag_0.5)Mn₇O₁₂

D. Lu, J. Yang, J. Zhang, H. Zhao, M. Pi, X. Ye, X. Wang, Z. Pan, C. Dong, L. He, F. Shen, C.-Y. Kuo, C.-T. Chen, Z. Hu, P. Yu, Y. Shen*, and Y. Long*

Physical Review B 109, 174417 (2024)

135. High-pressure synthesis of semiconducting PbCu₃Mn₄O₁₂ with near-room-temperature ferrimagnetic order

H. Zhao, D. Lu, X. Wang, X. Ye, J. Zhang, M. Pi, Z. Pan, Y.-Y. Chin, C.-T. Chen, Z. Hu, and Y. Long*

Inorganic Chemistry63, 5924 (2024)

134. Robust crystal phase separation with distinct charge, orbital, and spin orders in AgMn₇O₁₂

D. B. Lu, J. Zhang, H. T. Zhao, M. C. Pi, X. B. Ye, Z. H. Liu, X. Wang, X. Q. Zhang, Z. Pan, S. Y. Hsu, C. K. Chang, J. M. Chen, Z. W. Hu, and Y. W. Long*

Inorganic Chemistry63, 3191 (2024)

133. High-pressure synthesis of quadruple perovskite oxide CaCu₃Cr₂Re₂O₁₂ with a high ferrimagnetic Curie temperature

J. Zhang, Z. H. Liu, X. B. Ye, X. Wang, D. B. Lu, H. T. Zhao, M. C. Pi, C. T. Chen, J. L. Chen, C. Y. Kuo, Z. W. Hu, X. H. Yu, X. Q. Zhang, Z. Pan*, and Y. W. Long*

Inorganic Chemistry63, 3499 (2024)

132. High-pressure synthesized perovskite-type CeTaN₂O and its magnetic and electrical properties

Z. L. Chen, D. B. Lu, X. B. Ye, H. T. Zhao, J. Zhang, Z. Pan, Z. H. Chi, T. Cui, Y. Shen*, and Y. W. Long*

Acta Physica Sinica73, 080702 (2024)

131. Pressure induced amorphization of Pb²⁺ and Pb4+ in perovskite PbFeO₃

Q. M. Liu*, H. Das*, T. Nishikubo, Y. Sakai, K. Mibu, T. Onoue, T. Kawakami, T. Watanuki, A. Machida, X. B. Ye, J. H. Dai, Z. Pan, L. Hu, S. Nakano, M. Fukuda, S. Kihara, K. Lee, T. Koike, Y. W. Long, and M. Azuma*

Chemistry of Materials36, 1899 (2024)

130. A-Site ordered quadruple perovskite oxides: structures, properties and prospects

X. Wang*, Z. H. Liu, D. B. Lu, M. C. Pi, Z. Pan, Y. W. Long*

Chinese Journal of High Pressure Physics38, 010101 (2024)

特邀綜述，專題負(fù)責(zé)人

129. Witnessing quantum entanglement using resonant inelastic x-ray scattering

T. Ren*, Y. Shen*, S. F. R. TenHuisen, J. Sears, W. He, M. H. Upton, D. Casa, P. Becker, M. Mitrano, M. P. M. Dean*, and R. M. Konik*

arXiv: 2404.05850 (2024)

128. Octahedral distortion and displacement-type ferroelectricity with switchable photovoltaic effect in a 3d³-electron perovskite system

B. W. Zhou, J. Zhang, X. B. Ye, G. X. Liu, X. Xu, J. Wang, Z. H. Liu, L. Zhou, Z. Y. Liao, H. B. Yao, S. Xu, J. J. Shi, X. Shen, X. H. Yu, Z. W. Hu, H. J. Lin, C. T. Chen, X. G. Qiu, C. Dong, J. X. Zhang, R. C. Yu, P. Yu, K. J. Jin, Q. B. Meng, and Y. W. Long*

Physical Review Letters 130, 146101 (2023)

127. Room-temperature magnetism in 2D MnGa₄-H induced by hydrogen insertion

N. Wei, L. C. He, C. W. Wu, D. B. Lu, R. H. Li, H. W. Shi, H. H. Lan, Y. Wen, J. He, Y. W. Long*, X. Wang*, M. Q. Zeng*, and L. Fu*

Advanced Materials35, 2210828 (2023)

126. Magnetic-field-induced sign changes of thermal expansion in DyCrO₄

J. C. He#, Z. Pan#, D. Su, X. D. Shen, J. Zhang, D. B. Lu, H. T. Zhao, J. Z. Cong, E. E. Liu, Y. W. Long*, and Y. Sun*

Chinese Physics Letters 40, 066501 (2023)

Express Letter，被英國皇家物理學(xué)會Physics World選為Research Update

125. Delocalized Bi-tetrahedral cluster induced ultralow lattice thermal conductivity in Bi₃Ir₃O₁₁

J. L. Ji, Z. H. Liu, J. H. Dai, D. Qiu, J. Yang, J. Y. Xi*, Y. W. Long*, and W. Q. Zhang*

Materials Today Physics 32, 101005 (2023)

124. Strong magnetocaloric coupling in oxyorthosilicate with dense Gd³⁺ spins

Z. W. Yang, J. Zhang, D. B. Lu, X. X. Zhang, H. T. Zhao, H. Z. Cui*, Y. J. Zeng*, and Y. W. Long*

Inorganic Chemistry62, 5282 (2023)

123. High-pressure-stabilized post-spinel phase of CdFe₂O₄ with distinct magnetism from its ambient-pressure spinel phase

B. H. Li, X. B. Ye, X. Wang, J. Zhang, D. B. Lu, H. T. Zhao, M. C. Pi, Z. W. Hu, H. J. Lin, C. T. Chen, Z. Pan,* X. M. Qin,* and Y. W. Long*

Inorganic Chemistry 62, 9139 (2023)

122. CaCu₃Mn₂Te₂O₁₂: an intrinsic ferrimagnetic insulator prepared under high pressure

H. T. Zhao, Y. J. Bai, K. Yin, X. Wang, Z. H. Liu, X. B. Ye, D. B. Lu, J. Zhang, M. C. Pi, Z. W. Hu, H. J. Lin, C. T. Chen, Q. B. Meng, P. Yu, Q. F. Zhang*, and Y. W. Long*

Inorganic Chemistry 62, 21233 (2023)

121. High-pressure single crystal growth and magnetoelectric properties of CdMn₇O₁₂

L. Zhou, X. Wang*, Z. H. Liu, X. B. Ye, J. Zhang, H. T. Zhao, D. B. Lu, M. C. Pi, Z. Pan, X. Q. Zhang, and Y. W. Long*

Journal of Physics: Condensed Matter 35, 254001 (2023)

被選為封面論文

120. Coexistence of both localized electronic states and electron gas at rutile TiO₂ surfaces

S. C. Shen,* M. Wang, Y. Zhang, Y. J. Lyu, D. Tian, C. Gao, Y. W. Long, J. Zhao, and P. Yu*

Advanced Materials 35, 2301453 (2023)

119. Facile pathways to synthesize perovskite strontium cobalt oxides

S. C. Lu, F. Yin, Y. J. Wang, N. P. Lu, L. Gao, H. N. Peng, Y. J. Lyu, Y. W. Long, J. Li*, and P. Yu*

Advanced Functional Materials33, 2210377 (2023)

118. Anion-induced robust ferroelectricity in sulfurized pseudo-rhombohedral epitaxial BiFeO₃ thin films via polarization rotation

G. X. Xi, Z. Pan*, Y. W. Fang*, J. Tu, H. R. Li, Q. Q. Yang, C. Liu, H. J. Luo, J. Q. Ding, S. Xu, S. Q. Deng, Q. X. Wang, D. X. Zheng, Y. W. Long, K. J. Jin, X. X. Zhang, J. J. Tian, and L. X. Zhang*

Materials Horizons 10, 4389 (2023)

117. Mg doping enhanced magnetoelectric effect in the polar magnet Fe₂Mo₃O₈

J. K. Yang, D. Su, J. C. He, Y. Ji, Q. W. Guo, Y. Meng, X. F. Li, L. Y. Wang, X. Shen*, Y. Yao, Y. W. Long, Y. Sun, and R. C. Yu*

Physical Review B107, 104408 (2023)

116. Percolation-induced resistivity drop in lutetium dihydride with controllable electrical conductivity over six orders of magnitude

N. N. Wang*, J. Hou, Z. Y. Liu, T. L. Lu, P. F. Shan, C. C. Chai, S. F. Jin, L. Ma, L. F. Shi, X. Wang, Y. W. Long, Y. Liu, H. Zhang, X. L. Dong, S. Meng, M. Liu*, and J. G. Cheng*

Science China Physics, Mechanics & Astronomy 66, 297412 (2023)

115. Rattling phonon modes in quadruple perovskites

Z. V. Pchelkina, E. V. Komleva, V. Yu. Irkhin, Y. W. Long, and S. V. Streltsov*

JETP Letters 118, 738 (2023)

114. Tetragonal and orthorhombic phases in polycrystalline Sr₄Ir₃O₁₀ synthesized by high-pressure and high-temperature technique

H. X. Wang, D. B. Lu, W. P. Wang, Y. F. Ding, Y. Ji, X. Shen,* Y. Yao, Y. W. Long, and R. C. Yu*

Physica Status Solidi B, 2300050 (2023)

113. The structural diversity and properties of Nb_xMo_1-xO₂

Y. Ji, H. X. Wang, X. F. Li, Y. Meng, Y. Wang, X. B. Ye, Z. H. Liu, L. Y. Wang, J. K. Yang, Q. W. Guo, H. Y. Zhuang, X. Shen*, C. W. Kao, T. S. Chan, Z. W. Hu*, H. Yang, Y. W. Long, R. C. Yu*

Journal of Solid State Chemistry327, 124285 (2023)

112. Superconductivity in trilayer nickelate La₄Ni₃O₁₀ single crystals

Y. Zhu#, E. Zhang#, B. Pan#, X. Chen#, D. Peng#, L. Chen, H. Ren, F. Liu, N. Li, Z. Xing, J. Han, J. Wang, D. Jia, H. Wo, Y. Gu, Y. Gu, L. Ji, W. Wang, H. Gou, Y. Shen, T. Ying, X. Chen, W. Yang, C. Zheng, Q. Zeng*, J. Guo*, and J. Zhao*

arXiv: 2311.07353 (2023)

111. Realization of a half metal with a record-high Curie temperature in perovskite oxides

Z. H. Liu, S. K. Zhang, X. Wang, X. B. Ye, S. J. Qin, X. D. Shen, D. B. Lu, J. H. Dai, Y. Y. Cao, K. Chen, F. Radu, W. B. Wu, C. T. Chen, S. Francoual, J. R. L. Mardegan, O. Leupold, L. H. Tjeng, Z. W. Hu, Y. F. Yang*, and Y. W. Long*

Advanced Materials34, 2200626 (2022)

被選為封三論文

110. Physical realization of topological Roman surface by spin-induced ferroelectric polarization in cubic lattice

G. X. Liu#, M. C. Pi#, L. Zhou, Z. H. Liu, X. D. Shen, X. B. Ye, S. J. Qin, X. R. Mi, X. Chen, L. Zhao, B. W. Zhou, J. Guo, X. H. Yu, Y. S. Chai*, H. M. Weng*, and Y. W. Long*

Nature Communications13, 2373 (2022)

109. Emergent physical properties of perovskite-type oxides prepared under high pressure

X. B. Ye, X. Wang, Z. H. Liu, B. W. Zhou, L. Zhou, H. S. Deng, and Y. W. Long*

Dalton Transactions51, 1745 (2022)特邀綜述

108. A-site Mn²⁺ tuned magnetism and electrical transport properties in the transition-metal-only perovskite oxide MnCu₃Mn₄O₁₂

J. Guo, S. Y. Wang, W. M. Li, D. B. Lu, X. B. Ye, Z. H. Liu, S. J. Qin, X. Wang, Z. W. Hu, H. J. Lin, C. T. Chen, J. G. Wan, Q. F. Zhang*, and Y. W. Long*

Physical Review B 105, 054409 (2022)

107. Magnetoelectric and magnetostrictive effects in scheelite-type HoCrO₄

X. D. Shen, L. Zhou, Z. H. Liu, J. C. He, X. B. Ye, G. X. Liu, S.J. Qin, D. B. Lu, J. Zhang, Y. Sun, and Y. W. Long*

Inorganic Chemistry 61, 14030 (2022)

106. Comparative study on the magnetic and transport properties of B-site ordered and disordered CaCu₃Fe₂Os₂O₁₂

X. Wang*, Z. H. Liu, H. S. Deng, S. Agrestini, K. Chen, J. F. Lee, H. J. Lin, C. T. Chen, F. Choueikani, P. Ohresser, F. Wilhelm, A. Rogalev, L. H. Tjeng, Z. W. Hu, and Y. W. Long*

Inorganic Chemistry 61, 16929 (2022)

105. Gadolinium oxyorthogermanate Gd₂GeO₅: An efficient solid refrigerant material for magnetic cryocoolers

Z. Y. Yang, S. J. Qin, J. Zhang, D. B. Lu, H. T. Zhao, C. X. Kang, H. Z. Cui*, Y. W. Long*, and Y. J. Zeng*

Materials Today Physics 27, 100810 (2022)

104. Slight Co-doping tuned magnetic and electric properties on cubic BaFeO₃ single crystal

S. J. Qin, B. W. Zhou, Z. H. Liu, X. B. Ye, X. Q. Zhang, Z. Pan, and Y. W. Long*

Chinese Physics B31, 097503 (2022)

103. Large magnetic entropy change in weberite-type oxides Gd₃MO₇ (M = Nb, Sb, and Ta)

Z. Y. Yang, S. J. Qin, X. B. Ye, Z. H. Liu, Y. J. Guo, H. Z. Cui, J. Y. Ge, H. Li, Y. W. Long*, and Y. J. Zeng*

Science China Physics, Mechanics & Astronomy 65, 247011 (2022)

102. Transformation of thermal expansion from large volume contraction to nonlinear strong negative thermal expansion in PbTiO₃−Bi(Co_1−xFe_x)O₃ perovskites

Zhao Pan,*,# Xingxing Jiang,# Runze Yu, Yang Ren, Zheshuai Lin, Jun Chen,* Masaki Azuma, and Xianran Xing

ACS Applied Materials & Interfaces 14, 23610 (2022)

101. A ferrotoroidic candidate with well-separated spin chains

J. Zhang, X. C. Wang,* L. Zhou, G. X. Liu, D. T. Adroja, I. Silva, F. Demmel, D. Khalyavin, J. Sannigrahi, H. S. Nair, L. Duan, J. F. Zhao, Z. Deng, R. Z. Yu, X. Shen, R. C. Yu, H. Zhao, J. M. Zhao, Y. W. Long, Z. W. Hu, H. J. Lin, T. S. Chan, C. T. Chen, W. Wu*, and C. Q. Jin*

Advanced Materials34, 2106728 (2022)

100. Superconductivity above 200 K discovered in superhydrides of calcium

Z. W. Li, X. He, C. L. Zhang, X. C. Wang*, S. J. Zhang, Y. T. Jia, S. M. Feng, K. Lu, J. F. Zhao, J. Zhang, B. S. Min, Y. W. Long, R. C. Yu, L. H. Wang, M. Y. Ye, Z. S. Zhang, V. Prakapenka, S. Chariton, P. A. Ginsberg, J. Bass, S. H. Yuan, H. Z. Liu, and C. Q. Jin*

Nature Communications13, 2863 (2022)

99. Record high T_C element superconductivity achieved in titanium

C. L. Zhang, X. He, C. Liu, Z. W. Li, K. Lu, S. J. Zhang, S. M. Feng, X. C. Wang*, Y. Peng, Y. W. Long, R. C. Yu, L. H. Wang, V. Prakapenka, S. Chariton, Q. Li, H. Z. Liu, C. F. Chen*, and C. Q. Jin*

Nature Communications 13, 5411 (2022)

98. Field-Free Magnetization Switching Driven by Spin–Orbit Torque in L1₀-FeCrPt Single Layer

H. C. Lyu, Y. C. Zhao, J. Qi, H. Huang, J. Y. Zhang, G. Yang, Y. Q. Guo, S. P. Shen, W. D. Qin, Y. Sun, J. X. Shen, P. W. Dou, B. K. Shao, Y. Zhang, K. Jin, Y. W. Long, H. X. Wei, B. G. Shen, S. G. Wang*

Advanced Functional Materials 2200660 (2022)

97. Pressure effect in the antiperovskite phosphide superconductor Sr(Pt_0.9Pd_0.1)₃P

L. F. Shi, P. T. Yang, T. Wang, P. F. Shan, Z. Y. Liu, S. X. Xu, K. Y. Chen, N. N. Wang, L. Zhou, Y. W. Long, J. P. Sun, G. Mu*, Y. Uwatoko, B. S. Wang*, and J. G. Cheng*

Physical Review B 105, 214529 (2022)

96. Current-induced magnetization switching in epitaxial L1₀-FePt/Cr heterostructures through orbital Hall effect

H. C. Lyu, Y. C. Zhao*, J. Qi, G. Yang, W. D. Qin, B. K. Shao, Y. Zhang, C. Q. Hu, K. Wang, Q. Q. Zhang, J. Y. Zhang, T. Zhu, Y. W. Long, H. X. Wei, B. G. Shen, and S. G. Wang*

Journal of Applied Physics 132, 013901 (2022)

95. Studies on synthesis, structure and physical properties of NbMoO₄

Y. Ji, W. P. Wang, Y. F. Ding, H. X. Wang, J. K. Yang, Q. W. Guo, X. B. Ye, X. Shen*, Y. Yao, J. F. Zhao, C. Q. Jin, T. S. Chan, Z. W. Hu, Y. W. Long, and R. C. Yu*

Physica B 628, 413624 (2022)

94. Observation of novel charge ordering and spin reorientation in perovskite oxide PbFeO₃

X. B. Ye#, J. F. Zhao#, H. Das#, D. Sheptyakov, J. Y. Yang, Y. Sakai, H. Hojo, Z. H. Liu, L. Zhou, L. P. Cao, T. Nishikubo, S. Wakazaki, C. Dong, X. Wang, Z. W. Hu, H. J. Lin, C. T. Chen, C. Sahle, A. Efiminko, H. B. Cao, S. Calder, K. Mibu, M. Kenzelmann, L. H. Tjeng, R. Z. Yu*, M. Azuma*, C. Q. Jin, and Y. W. Long*

Nature Communications 12, 1917 (2021)

93. Aʹ-B intersite cooperation-enhanced water splitting in quadruple perovskite oxide CaCu₃Ir₄O₁₂

X. B. Ye, S. Z. Song, L. L. Li, Y. Chang, S. J. Qin, Z. H. Liu, Y. Huang, J. Zhou, L. J. Zhang, C. Dong, C. Pao, H. Lin, C. Chen, Z. W. Hu,* J. Q. Wang,* and Y. W. Long*

Chemistry of Materials 33, 9295 (2021)

被選為封面論文

92. Observation of A-site antiferromagnetic and B-site ferrimagnetic orderings in the quadruple perovskite oxide CaCu₃Co₂Re₂O₁₂

Z. H. Liu, X. Wang, X. B. Ye, X. D. Shen, Y. C. Bian, W. Ding, S. Agrestini, S. C. Liao, H. J. Lin, C. T. Chen, S. C. Weng, K. Chen, P. Ohresser, L. Nataf, F. Baudelet, Z. G. Sheng, S. Francoual, J. R. L. Mardegan, O. Leupold, Z. F. Li, X. K. Xi, W. H. Wang, L. H. Tjeng, Z. W. Hu, and Y. W. Long*

Physical Review B 103, 014414 (2021)

91. Magnetic and electric field dependent anisotropic magnetoelectric multiferroicity in SmMn₃Cr₄O₁₂

G. X. Liu, Z. H. Liu, Y. S. Chai, L. Zhou, X. D. Shen, X. B. Ye, S. J. Qin, D. B. Lu, Z. W. Hu, L. H. Tjeng, H. J. Lin, C. T. Chen, X. H. Yu, Y. W. Long*

Physical Review B 104, 054407 (2021)

90. Enhancement of Aʹ-site Mn³⁺ spin ordering by B-site Mn⁴⁺ substitution in quadruple perovskite PbMn₃Cr₃MnO₁₂

G. X. Liu, L. Zhou, B. W. Zhou, X. B. Ye, D. B. Lu, X. D. Shen, S. J. Qin, Z. W. Hu, Y. Y Chin, H. J. Lin, C. T. Chen, X. H. Yu, Y. W. Long*

Applied Physics Letters 118, 262403 (2021)

89. Os doping suppressed Cu-Fe charge transfer and induced structural and magnetic phase transitions in LaCu₃Fe_4-xOs_xO₁₂ (x = 1 and 2)

X. Wang, Z. H. Liu, X. B. Ye, B. W. Zhou, Z. W. Hu, W. P. Wang, R. C. Yu, S. Agrestini, G. H. Zhou, K. Chen, F. Choueikani, P. Ohresser, F. Baudelet, H. J. Lin, C. T. Chen, A. Tanaka, S. C. Weng, and Y. W. Long*

Inorganic Chemistry 60, 6298 (2021)

88. High-pressure synthesis and magnetism of 4H-BaMnO₃ single crystal and its 6H-type polymorph

S. J. Qin, Y. Y. Chin, B. W. Zhou, Z. H. Liu, X. B. Ye, J. Guo, G. X. Liu, C. T. Chen, Z. W. Hu, and Y. W. Long*

Inorganic Chemistry60, 6298 (2021)

87. A combinatory ferroelectric compound bridging simple ABO₃ and A-site-ordered quadruple perovskite

J. F. Zhao, J. C. Gao, W. M. Li, Y. T. Qian, X. D. Shen, X. Wang, X. Shen, Z. W. Hu, C. Dong, Q. Z. Huang, L. P. Cao, Z. Li, J. Zhang, C. W. Ren, L. Duan, Q. Q. Liu, R. C. Yu, Y. Ren, S. C. Weng, H. J. Lin, C. T. Chen, L. H. Tjeng, Y. W. Long, Z. Deng, J. L. Zhu, X. C. Wang, H. M. Weng*, R. Z. Yu*, M. Greenblatt, and C. Q. Jin*

Nature Communications 12, 747 (2021)

86. Charge disproportionation and complex magnetism in a PbMnO₃ perovskite synthesized under high pressure

X. Li, Z. W. Hu, Y. Cho, X. Y. Li, H. Sun, L. Z. Cong, H. J. Lin, S. C. Liao, C. T. Chen, A. Efimenko, C. J. Sahle, Y. W. Long, C. Q. Jin, M. C. Downer, J. B. Goodenough, and J. S. Zhou*

Chemistry of Materials33, 92 (2021)被選為封面論文

85. Charge and spin degrees of freedom in A-site ordered YCu₃Co₄O₁₂ and CaCu₃Co₄O₁₂

Y. Y. Chin*, Z. W. Hu, Y. Shimakawa, J. Y. Yang, Y. W. Long, A. Tanaka, L. H. Tjeng, H. J. Lin*, and C. T. Chen

Physical Review B 103, 014414 (2021)

84. A large enhancement of ionic conductivity in SrCoO_2.5 controlled by isostructural phase transition and negative linear compressibility

B. H. Wang, N. N. Li*, Y. S. Zhao, X. Q. Liu, M. T. Li, Q. Zhang, H. N. Dong, Y. He, D. Z. Zhang, Y. G. Wang, G. Liu, Y. W. Long, and W. G. Yang*

Applied Physics Letters118, 262403 (2021)

83. The phase multiformity and domain structure of Sr₃Ir₂O₇

H. X. Wang, X. D. Shen, W. P. Wang, Y. F. Ding, Y. Ji, J. K. Yang, X. Shen, Y. Yao, Y. W. Long, and R. C. Yu*

Journal of Physics and Chemistry of Solids 148, 109721 (2021)

82. Sequential spin state transition and intermetallic charge transfer in PbCoO₃

Z. H. Liu, Y. Sakai, J. Y. Yang, W. M. Li, Y. Liu, X. B. Ye, S. J. Qin, J. M. Chen*, S. Agrestini, K. Chen, S. C. Liao, S. C. Haw, F. Baudelet, H. Ishii, T. Nishikubo, H. Ishizaki, T. Yamamoto, Z. Pan, M. Fukuda, K. Ohashi, K. Matsuno, A. Machida, T. Watanuki, S. I. Kawaguchi, A. M. Arevalo-Lopez, C. Q. Jin, Z. W. Hu, J. P. Attfield, M. Azuma*, and Y. W. Long*

Journal of the American Chemical Society 142, 5731 (2020)

被選為封面論文

81. Tunable Room-Temperature Ferromagnetism in Two-Dimensional Cr₂Te₃

Y. Wen^#, Z. H. Liu^#, Y. Zhang, C. X. Xia, B. X. Zhai, X. H. Zhang, G. H. Zhai, C. Shen, P. He, R. Q. Cheng, L. Yin, Y. Y. Yao, M. G. Sendeku, Z. X. Wang, X. B. Ye, C. S. Liu, C. Jiang, C. X. Shan, Y. W. Long*, and J. He*

Nano Letters 20, 3130 (2020)

80. High-temperature ferromagnetic semiconductor with a field-tunable green fluorescent effect

B. W. Zhou, Q. Zhao, Z. H. Liu, X. D. Shen, X. B. Ye, J. J. Shi, Z. Y. Liao, W. P. Wang, Z. W. Hu, H. J. Lin, C. T. Chen, Y. C. Bian, Z. G. Sheng, R. C. Yu, X. G. Qiu, Q. B. Meng, Z. Li*, and Y. W. Long*

NPG Asia Materials 12, 69 (2020)

被選為亮點(diǎn)推薦論文

79. Quadruple perovskite oxide LaCu₃Co₂Re₂O₁₂: A ferrimagnetic half metal with nearly 100% B-site degree of order

Z. H. Liu, Q. Sun, X. B. Ye, X. Wang, L. Zhou, X. D. Shen, K. Chen, L. Nataf, F. Baudelet, S. Agrestini, C. T. Chen, H. J. Lin, H. B. Vasili, M. Valvidares, Z. W. Hu, Y. F. Yang*, and Y. W. Long*

Applied Physics Letters 117, 152402 (2020)

被選為編輯精選論文

78. Multiple magnetic transitions and electrical transport transformation of a BaFeO₃ cubic perovskite single crystal

Y. X. Liu, Z. H. Liu, Z. Li, S. J. Qin, X. B. Ye, X. D. Shen, B. W. Zhou, G. H. Zhou* S. Agrestini, M. Valvidares, H. B. Vasili , Z. W. Hu, and Y. W. Long*

Physical Review B 101, 144421 (2020)

77. Suppression of magnetoelectric effects in DyCrO₄ by chemical doping

X. D. Shen, L. Zhou, X. B. Ye, Z. H. Liu, G. X. Liu, S. J. Qin, J. Guo, L. Gao, Y. S. Chai, and Y. W. Long*

Applied Physics Letters 116, 052901 (2020)

76. High-pressure synthesis of two polymorphic HgMnO₃ phases and distinct magnetism from 2D to 3D

B. W. Zhou, S. J. Qin, T. Ma, X. B. Ye, J. Guo, X. H. Yu, H. J. Lin, C. T. Chen, Z. W. Hu, L. H. Tjeng, G. H. Zhou, C. D. Dong, and Y. W. Long*

Inorganic Chemistry 59, 3887 (2020)

75. High-pressure synthesis of a B-site Co²⁺/Mn⁴⁺ disordered quadruple perovskite LaMn₃Co₂Mn₂O₁₂

J. Guo, X. D. Shen, Z. H. Liu, S. J. Qin, W. P. Wang, X. B. Ye, G. X. Liu, R. C. Yu, H. J. Lin, C. T. Chen, L. H. Tjeng, Z. W. Hu, and Y. W. Long*

Inorganic Chemistry59, 12445 (2020)

74. High-pressure synthesis and spin glass behavior of a Mn/Ir disordered quadruple perovskite CaCu₃Mn₂Ir₂O₁₂

X. B. Ye, Z. H. Liu, W. P. Wang, Z. W. Hu, H. J. Lin, S. C. Weng, C. T. Chen, R. C. Yu, L. H. Tjeng, and Y. W. Long*

Journal of Physics: Condensed Matter 32, 075701 (2020)

73. High-pressure synthesis and thermal transport properties of polycrystalline BAs_x

L. Gao, Q. L. Liu, J. W. Yang, Y. Wu, Z. H. Liu, S. J. Qin, X. B. Ye, S. F. Jin, G. D. Li, H. Z. Zhao*, Y. W. Long*

Chinese Physics Letters 37, 066202 (2020)

被選為編輯推薦論文

72. Emergent topological spin structures in the centrosymmetric cubic perovskite SrFeO₃

S. Ishiwata*, T. Nakajima, J.-H. Kim, D. S. Inosov, N. Kanazawa, J. S. White, J. L. Gavilano, R. Georgii, K. M. Seemann, G. Brandl, P. Manuel, D. D. Khalyavin, S. Seki, Y. Tokunaga, M. Kinoshita, Y. W. Long, Y. Kaneko, Y. Taguchi, T. Arima, B. Keimer, and Y. Tokura

Physical Review B 101, 134406 (2020)

被選為編輯推薦論文

71. Characterization of magnetic symmetry and electric polarization of YCr_0.5Fe_0.5O₃

J. Y. Yang, X. D. Shen, V. Pomjakushin, L. Keller, E. Pomjakushina, Y. W. Long, and M. Kenzelmann*

Physical Review B 101, 014415 (2020)

70. The unconventional copper oxide superconductor with conventional constitution

W. M. Li, J. F. Zhao, L. P. Cao, Z. Hu, Q. Z. Huang, X. C. Wang, R. Z. Yu, Y. W. Long, H. Wu, H. J. Lin, C. T. Chen, Z. Z. Gong, Z. Guguchia, J. S. Kim, G. R. Stewart, Y. J. Uemura, S. Uchida, and C. Q. Jin*

Journal of Superconductivity and Novel Magnetism 33, 81 (2020)

69. Large linear magnetoelectric effect and field-induced ferromagnetism and ferroelectricity in DyCrO₄

X. D. Shen, L. Zhou, Y. S. Chai, Y. Wu, Z. H. Liu, Y. Y. Yin, H. B. Cao, C. Cruz, Y. Sun, C. Q. Jin, A. Muñoz, J. Alonso, and Y. W. Long*

NPG Asia Materials 11, 50 (2019)

被選為亮點(diǎn)推薦論文

68. High-temperature ferrimagnetic half metallicity with wide spin-up energy gap in NaCu₃Fe₂Os₂O₁₂

X. Wang, M. Liu, X. D. Shen, Z. H. Liu, Z. W. Hu, K. Chen, P. Ohresser, L. Nataf, F. Baudel, H. J. Lin, C. T. Chen, Y. L. Soo, Y. F. Yang*, C. Q. Jin, and Y. W. Long*

Inorganic Chemistry 58, 320 (2019)

被選為封面論文

67. Near room-temperature ferrimagnetic ordering in a B-site-disordered 3d-5d-hybridized quadruple perovskite oxide, CaCu₃Mn₂Os₂O₁₂

L. Gao, X. Wang, X. B. Ye, W. P. Wang, Z. H. Liu, S. J. Qin, Z. W. Hu, H. J. Lin, S. C. Weng, C. T. Chen, P. Ohresser, F. Baudelet, R. C. Yu, C. Q. Jin, and Y. W. Long*

Inorganic Chemistry 58, 15529 (2019)

66. High-pressure synthesis of A-site ordered perovskite CaMn₃(Fe₃Mn)O₁₂ and sequential long-range antiferromagnetic ordering and spin glass transition

J. Guo, X. B. Ye, Z. H. Liu, W. P. Wang, S. J. Qin, B. W. Zhou, Z. W. Hu, H. J. Lin, C. T. Chen, R. C. Yu, L. H. Tjeng, and Y. W. Long

Journal of Solid State Chemistry 278, 120921 (2019)

65. Spin glassy behavior and large exchange bias effect in cubic perovskite Ba_0.8Sr_0.2FeO_3-𝛿

Y. X. Liu, Z. H. Liu, X. B. Ye, X. D. Shen, X. Wang, B. W. Zhou, G. H. Zhou, and Y. W. Long*

Chinese Physics B 28, 068104 (2019)

64. Observation of unconventional chiral fermions with long Fermi arcs in CoSi

Z. C. Rao, H. Li, T. T. Zhang, S. J. Tian, C. H. Li, B. B. Fu, C. Y. Tang, L. Wang, Z. L. Li, W. H. Fan, J. J. Li, Y. B. Huang, Z. H. Liu, Y. W. Long, C. Fang, H. M. Weng, Y. G. Shi, H. C. Lei*, Y. J. Sun*, T. Qian*, and H. Ding

Nature 567, 496 (2019)

63. Superconductivity in a unique type of copper oxide

W. M. Li, J. F. Zhao, L. P. Cao, Z. Hu, Q. Z. Huang, X. C. Wang, Y. Liu, G. Q. Zhao, J. Zhang, Q. Q. Liu, R. Z. Yu, Y. W. Long, H. Wu, H. J. Lin, C. T. Chen, Z. Li, Z. Z. Gong, Z. Guguchia, J. S. Kim, G. R. Stewart, Y. J. Uemura, S. Uchida, and C. Q. Jin*

Proceedings of the National Academy of Sciences 116, 12156 (2019)

62. Exceptional oxygen evolution reactivities on CaCoO₃ and SrCoO₃

X. Li, H. Wang, Z. M. Cui, Y. T. Li*, S. Xin, J. S. Zhou, Y. W. Long, C. Q. Jin, and J. B. Goodenough*

Science Advances 5, eaav6262 (2019)

61. Pressure-induced superconductivity and quantum phase transitions in the Rashba material BiTeCl

M. L. Jin, S. J. Zhang, L. Y. Xing, W. M. Li, G. Q. Zhao, X. C. Wang, Y. W. Long, X. D. Li, H. Y. Bai, C. Z. Gu, and C. Q. Jin*

Journal of Physics and Chemistry of Solids 128, 211 (2019)

60. Superconductivity of a cuprate with compressed local octahedron

W. M. Li, L. P. Cao, J. F. Zhao, X. C. Wang, R. Z. Yu, Y. W. Long, Q. Q. Liu, and C. Q. Jin*

Science China Physics, Mechanics & Astronomy 62, 037421 (2019)

59. Orbital selection of the double [CuO₂] layer compound Ca₃Cu₂O₄Cl₂

J. F. Zhao, L. P. Cao, W. M. Li, J. Zhang, G. Y. Dai, S. Yu, Q. Q. Liu, X. C. Wang, G. Q. Zhao, Y. T. Jia, L. Duan, Y. W. Long, H. J. Lin, C. T. Chen, L. H. Tjeng, Z. W. Hu, R. Z. Yu*, and C. Q. Jin*

Science China Physics, Mechanics & Astronomy 62, 107421 (2019)

58. Superconductivity in Topological Semimetal θ-TaN at High Pressure

Y. T. Jia, J. F. Zhao, S. J. Zhang, S. Yu, G. Y. Dai, W. M. Li, L. Duan, G. Q. Zhao, X. C. Wang, X. Zheng, Q. Q. Liu, Y. W. Long, Z. Li, X. D. Li, H. M. Weng, R. Z. Yu, R. C. Yu, and C. Q. Jin

Chinese Physics Letters 36, 087401 (2019)

57. Pentavalent iridium pyrochlore Cd₂Ir₂O₇: A prototype material system for competing crystalline field and spin-orbit coupling

J. H. Dai, Y. Y. Yin, X. Wang, X. D. Shen, Z. H. Liu, X. B. Ye, J. G. Cheng, C. Q. Jin, G. H. Zhou, Z. Hu, S. Weng, X. G. Wan, and Y. W. Long*

Physical Review B 97, 085103 (2018)

56. Formation of ZnO₄ tetrahedra and ZnO₆ octahedra in TeZnO₃ synthesized under high pressure

J. H. Dai, X. D. Shen, Z. H. Liu, Q. Zhao, X. Wang, C. Dong, Y. C. Bian, W. Ding, Z. G. Sheng, M. Azuma, Y. W. Long*

Inorganic Chemistry57, 6716 (2018)

55. Formation of unusual Cr⁵⁺ charge state in CaCr_0.5Fe_0.5O₃ perovskite

J. H. Dai, Q. Zhao, Q. Sun, S. Zhang, X. Wang, X. D. Shen, Z. H. Liu, X. Shen, R. C. Yu, T. S. Chan, L. X. Li, G. H. Zhou, Y. F. Yang*, C. Q. Jin, Y. W. Long*

Chinese Physics B 27, 037503 (2018)

54. High pressure synthesis and physical properties of multiferroic materials with multiply-ordered perovskite structure

L. Zhou, X. Wang, H. M. Zhang, X. D. Shen, S. Dong, Y. W. Long*

Acta Physica Sinica67, 157505 (2018)特邀綜述

53. Splash-resistant and light-weight silk-sheathed wires for textile electronics

Z. Yin, M. Q. Jian, C. Y. Wang, K. L. Xia, Z. H. Liu, Q. Wang, M. C. Zhang, H. M. Wang, X. P. Liang, X. Liang, Y. W. Long, X. H. Yu, Y. Y. Zhang*

Nano Letters18, 7085 (2018)

52. Manipulating the structural and electronic properties of epitaxial SrCoO_2.5 thin films by tuning the epitaxial strain

J. L. Zhao, H. Z. Guo, X. He, Q. H. Zhang, L. Gu, X. L. Li, K. J. Jin*, T. Y. Yang, C. Ge, Y. Luo, M. He, Y. W. Long, J. O. Wang, H. J. Qian, C. Wang, H. B. Lu, G. Z. Yang, K. Ibrahim*

ACS Applied Materials & Interfaces 10, 10211 (2018)

51. Molten-salt synthesis of porous La_0.6Sr_0.4Co_0.2Fe_0.8O_2.9 perovskite as an efficient electrocatalyst for oxygen evolution

S. Z. Song, J. Zhou, S. Zhang, L. J. Zhang, J. Li, Y. Wang, L. Han, Y. W. Long, Z. Hu, J. Q. Wang*

Nano Research11, 4796 (2018)

50. Effect of Pb doping on metallic state of cubic pyrochlore Cd₂Ru₂O₇

Y. Y. Jiao, J. P. Sun, P. Shahi, Z. H. Liu, B. S. Wang, Y. W. Long, J. G. Cheng*

Acta Physica Sinica 67, 127402 (2018)

49. Realization of large electric polarization and strong magnetoelectric coupling in BiMn₃Cr₄O₁₂

L. Zhou, J. H. Dai, Y. S. Chai, H. M. Zhang, S. Dong, H. B. Cao, S. Calder, Y. Y. Yin, X. Wang, X. D. Shen, Z. H. Liu, T. Saito, Y. Shimakawa, H. Hojo, Y. Ikuhara, M. Azuma, Z. W. Hu, Y. Sun, C. Q. Jin, and Y. W. Long*

Advanced Materials29, 1703435 (2017)

被選為封二論文

48. A-site and B-site charge orderings in an s–d level controlled perovskite oxide PbCoO₃

Y. Sakai, J. Y. Yang, R. Z. Yu, H. Hojo, I. Yamada, P. Miao, S. Lee, S. Torii, T. Kamiyama, M. Ležaić, G. Bihlmayer, M. Mizumaki, J. Komiyama, T. Mizokawa, H. Yamamoto, T. Nishikubo, Y. Hattori, K. Oka, Y. Y. Yin, J. H. Dai, W. M. Li, S. Ueda, A. Aimi, D. Mori, Y. Inaguma, Z. W. Hu, T. Uozumi, C. Q. Jin, Y. W. Long*, and M. Azuma*

Journal of the American Chemical Society 139, 4574 (2017)

47. Magnetism and the spin state in cubic perovskite CaCoO₃ synthesized under high pressure

H. L. Xia, J. H. Dai, Y. J. Xu, Y. Y. Yin, X. Wang, Z. H. Liu, M. Liu, Michael A. McGuire, X. Li, Z. Y. Li, C. Q. Jin, Y. F. Yang, J. S. Zhou*, and Y. W. Long*

Physical Review Materials1, 024406 (2017)

46. High-pressure synthesis of cobalt pyrochlore oxide Pb₂Co₂O₇ with large cation mixed occupancy

J. Y. Yang, J. H. Dai, Z. H. Liu, R. Z. Yu, H. Hojo, Z. W. Hu, T. Pi, Y. Soo, C. Q. Jin, M. Azuma*, and Y. W. Long*

Inorganic Chemistry56, 11676 (2017)

45. Non-collinear magnetic structure of manganese quadruple perovskite CdMn₇O₁₂

H. Guo, M. T. Fernández-Daz, L. Zhou, Y. W. Long*, and A. C. Komarek*

Scientific Reports 7, 45939 (2017)

44. High-pressure synthesis and special physical properties of several ordered perovskite structures

Y. Y. Yin, X. Wang, H. S. Deng, L. Zhou, J. H. Dai, Y. W. Long*

Acta Physica Sinica 66, 030201 (2017)特邀綜述

43. Ultrastrong boron frameworks in ZrB₁₂: a highway for electron conducting

T. Ma, H. Li, X. Zheng, S. M. Wang, X. C. Wang, H. Z. Zhao, S. B. Han, J. Liu, R. F. Zhang*, P. W. Zhu*, Y. W. Long, J. G. Cheng, Y. M. Ma, Y. S. Zhao, C. Q. Jin, and X. H. Yu*

Advanced Materials29, 1604003 (2017)

42. Infrared spectroscopic study of CaFe_0.7Co_0.3O₃

C. X. Zhang, H. L. Xia, Y. M. Dai, Z. Y. Qiu, Q. T. Sui, Y. W. Long, and X. G. Qiu

Physical Review B 96, 075154 (2017)

41. Infrared spectroscopic study on lattice dynamics in CaFeO₃

C. X. Zhang, H. L. Xia, H. Liu, Y. M. Dai, B. Xu, R. Yang, Z. Y. Qiu, Q. T. Sui, Y. W. Long

Physical Review B 95, 064104 (2017)

40. Evidence for pressure-induced node-pair annihilation in Cd₃As₂

C. Zhang, J. P. Sun, F. L. Liu, A. Narayan, N. Li, X. Yuan, Y. W. Liu, J. H. Dai, Y. W. Long, Y. Uwatoko, J. Shen, S. Sanvito, W. G. Yang,* J. G. Cheng*, and F. X. Xiu*

Physical Review B 96, 155205 (2017)

39. High stored energy of metallic glasses induced by high pressure

C. Wang, Z. Z. Yang, T. Ma, Y. T. Sun, Y. Y. Yin, Y. Gong, L. Gu, P. Wen, P. W. Zhu, Y. W. Long, X. H. Yu*, C. Q. Jin, W. H. Wang, and H. Y. Bai*

Applied Physics Letters110, 111901 (2017)

38. Superconductivity bordering rashba type topological transition

M. L. Jin, F. Sun, L. Y. Xing, S. J. Zhang, S. M. Feng, P. P. Kong, W. M. Li, X. C. Wang, J. L. Zhu, Y. W. Long, H. Y. Bai, C. Z. Gu, R. C. Yu, W. G. Yang, G. Y. Shen, Y. S. Zhao, H. K. Mao, and C. Q. Jin*

Scientific Reports7, 39699 (2017)

37. Superconductivity in HfTe₅ across weak to strong topological insulator transition induced via pressures

Y. Liu, Y. J. Long, L. X. Zhao, S. M. Nie, S. J. Zhang, Y. X. Weng, M. L. Jin, W. M. Li, Q. Q. Liu, Y. W. Long, R. C. Yu, C. Z. Gu, F. Sun, W. G. Yang, H. K. Mao, X. L. Feng, Q. Li, W. T. Zheng, H. M. Weng, X. Dai, Z. Fang, G. F. Chen*, and C. Q. Jin*

Scientific Reports7, 44367 (2017)

36. Growth and Physical Properties of Sr_xCa_1-xCrO₃ single crystals

L. P. Cao, A. Z. Jin, C. Z. Gu, H. Y. Bai, Y. W. Long, R. C. Yu, L. Q. Pan, and C. Q. Jin*

Crystals7, 91 (2017)

35. LaMn₃Ni₂Mn₂O₁₂: An A- and B-Site Ordered Quadruple Perovskite with A-Site Tuning Orthogonal Spin Ordering

Y. Y. Yin, M. Liu, J. H. Dai, X. Wang, L. Zhou, H. B. Cao, C. Cruz, C. T. Chen, Y. J. Xu, X. Shen, R. C. Yu, J. A. Alonso, A. Muñoz, Y. F. Yang*, C. Q. Jin, Z. W. Hu, and Y. W. Long*

Chemistry of Materials28, 8988 (2016)

34. Strong enhancement of spin ordering by A-site magnetic ions in the ferrimagnet CaCu₃Fe₂Os₂O₁₂

H. S. Deng, M. Liu, J. H. Dai, Z. W. Hu, C. Kuo, Y. Y. Yin, J. Y. Yang, X. Wang, Q. Zhao, Y. J. Xu, Z. M. Fu, J. W. Cai, H. Z. Guo, K. J. Jin, T. Pi, Y. Soo, G. H. Zhou, J. G. Cheng, K. Chen, P. Ohresser, Y. F. Yang*, C. Q. Jin, L. H. Tjeng, and Y. W. Long*

Physical Review B 94, 024414 (2016)

33. High-pressure synthesis and ferrimagnetic ordering of the B-site-ordered cubic perovskite Pb₂FeOsO₆

Q. Zhao, M. Liu, J. H. Dai, H. S. Deng, Y. Y. Yin, L. Zhou, J. Y. Yang, Z. W. Hu, S. Agrestini, K. Chen, E. Pellegrin, M. Valvidares, L. Nataf, F. Baudelet, L. H. Tjeng, Y. F. Yang, C. Q. Jin, and Y. W. Long*

Inorganic Chemistry 55, 9816 (2016)

32. A-site ordered perovskite CaCu₃Cu₂Ir₂O_12-𝛿 with square-planar and octahedral coordinated Cu ions

Q. Zhao, Y. Y. Yin, J. H. Dai, X. Shen, Z. W. Hu, J. Y. Yang, Q. T. Wang, R. C. Yu, X. D. Li, and Y. W. Long*

Chinese Physics B25, 020701 (2016)

被選為封面論文

31. A-site ordered quadruple perovskite oxides AA'₃B₄O₁₂

Y. W. Long*

Chinese Physics B 25, 078108 (2016)

特邀綜述

30. Observation of magnetoelectric multiferroicity in a cubic perovskite system: LaMn₃Cr₄O₁₂

X. Wang, Y. S. Chai, L. Zhou, H. B. Cao, C. Cruz, J. Y. Yang, J. H. Dai, Y. Y. Yin, Z. Yuan, S. J. Zhang, R. Z. Yu, M. Azuma, Y. Shimakawa, H. Zhang, S. Dong, Y. Sun*, C. Q. Jin, and Y. W. Long*

Physical Review Letters115, 087601 (2015)

29. Pressure-induced spin reorientation and spin state transition in SrCoO₃

J. Y. Yang, C. Terakura, M. Medarde, J. S. White, D. Sheptyakov, X. Z. Yan, N. N. Li, W. G. Yang, H. L. Xia, J. H. Dai, Y. Y. Yin, Y. Y. Jiao, J. G. Cheng, Y. L. Bu, Q. F. Zhang, X. D. Li, C. Q. Jin, Y. Taguchi, Y. Tokura, Y. W. Long*

Physical Review B92, 195147 (2015)

28. Charge transfer induced multifunctional transitions with sensitive pressure manipulation in a metal-organic framework

J. Y. Yang, L. Zhou, J. G. Cheng, Z. W. Hu, C. Kuo, C. Pao, L. Jang, J. Lee, J. H. Dai, S. J. Zhang, S. M. Feng, P. P. Kong, Z. Yuan, J. Yuan, Y. Uwatoko, T. Liu*, C. Q. Jin, and Y. W. Long*

Inorganic Chemistry 54, 6433-6438 (2015)

27. Magnetism and magnetocaloric effect study of CaFe_0.7Co_0.3O₃

H. L. Xia, Y. Y. Yin, J. H. Dai, J. Y. Yang, X. M. Qin, C. Q. Jin, and Y. W. Long*

Materials Research Express2, 046103 (2015)

26. Magnetocaloric effect study of SrFe_0.8Co_0.2O₃ single crystal prepared under high pressure

H. L. Xia, X. M. Qin, J. Y. Yang, Y. Y. Yin, J. H. Dai, W. Z. Shi, and Y. W. Long*

Chinese Physics B24, 050701 (2015)

被選為編輯推薦論文

25. Hardness, elastic, and electronic properties of chromium monoboride

L. Han, S. M. Wang, J. L. Zhu, S. B. Han, W. M. Li, B. J. Chen, X. C. Wang, X. H. Yu*, B. C. Liu, R. F. Zhang, Y. W. Long, J. G. Cheng, J. Z. Zhang, Y. S. Zhao, and C. Q. Jin

Applied Physics Letters 106, 221902 (2015)

24. High pressure growth and characterization of SrCrO₃ single crystal

L. P. Cao, L. Q. Pan, W. M. Li, X. C. Wang, Q. Q. Liu, Y. W. Long, C. Z. Gu, and C. Q. Jin*

International Journal of Modern Physics B 29, 1542025 (2015)

23. A brief analysis of annealing process for electron-doped cuprate superconductors

Y. L. Jia, H. Yang, J. Yuan, H. S. Yu, Z. P. Feng, H. L. Xia, Y. J. Shi, G. He, W. Hu, Y. W. Long, B. Y. Zhu, and K. Jin

Acta Physica Sinica 64, 217402 (2015)

22. Pressure effect on intersite charge transfer in A-site-ordered double-perovskite-structure oxide

Y. W. Long, T. Kawakami, W. T. Chen, T. Saito, T. Watanuki, Y. Nakakura, Q. Q. Liu, C. Q. Jin, Y. Shimakawa*

Chemistry of Materials24, 2235 (2012)

21. Evolution of magnetic phases in single crystals of SrFe_1-xCo_xO₃ solid solution

Y. W. Long*, Y. Kaneko, S. Ishiwata, Y. Tokunaga, T. Matsuda, H. Wadati, Y. Tanaka, S. Shin, Y. Tokura, and Y. Taguchi

Physical Review B86, 064436 (2012)

20. Various 3d-4f spin interactions and field-induced metamagnetism in the Cr⁵⁺ system DyCrO₄

Y. W. Long*, Q. Q. Liu, Y. X. Lv, R. C. Yu, C. Q. Jin

Physical Review B 83, 024416 (2011)

19. Crossover from itinerant-electron to localized-electron behavior in Sr_1-xCa_xCrO₃ perovskite solid solution

Y. W. Long*, L. X. Yang, Y. X. Lv, Q. Q. Liu, C. Q. Jin*, J. S. Zhou, J. B. Goodenough

Journal of Physics: Condensed Matter23, 355601 (2011)

18. Synthesis of cubic SrCoO₃ single crystal and its anisotropic magnetic and transport properties

Y. W. Long*, Y. Kaneko, S. Ishiwata, Y. Taguchi, Y. Tokura

Journal of Physics: Condensed Matter23, 245601 (2011)

被選為期刊年度亮點(diǎn)論文，約5%入選率

17. Intermetallic charge transfer between A-site Cu and B-site Fe in A-site-ordered double perovskites

Y. W. Long*, Y. Shimakawa*

New Journal of Physics12, 063029 (2010)

16. Low-temperature neutron diffraction study of the crystal and magnetic phase transitions in DyCrO₄

Y. W. Long, Q. Huang, L. X. Yang, Y. Yu, Y. X .Lv, J. W. Lynn, Y. Chen, and C. Q. Jin*

Journal of Magnetism and Magnetic Materials 322, 1912 (2010)

15. Charge transfer and antiferromagnetic order in the A-site-ordered perovskite LaCu₃Fe₄O₁₂

W. T. Chen*, Y. W. Long, T. Saito, J. P. Attfield, Y. Shimakawa

Journal of Materials Chemistry20, 7282 (2010)

14. High-pressure synthesis and properties of new functional compounds

C. Q. Jin*, Q. Q. Liu, Y. W. Long, J. G. Zhao, Y. X. Lu, L. X. Yang, J. L. Zhu, and X. C. Wang

Physica Status Solidi A207, 2750 (2010)

特邀綜述

13. Temperature-induced A-B intersite charge transfer in an A-site-ordered LaCu₃Fe₄O₁₂ perovskite

Y. W. Long*, N. Hayashi, T. Saito, M. Azuma, S. Muranaka, Y. Shimakawa*

Nature458, 60 (2009)

被選為封內(nèi)推薦論文

12. Various valence states of square-coordinated Mn in A-site-ordered perovskites

Y. W. Long*, T. Saito, M. Mizumaki, A. Agui, Y. Shimakawa*

Journal of the American Chemical Society131, 16244 (2009)

11. Intermetallic charge transfer in A-site-ordered double perovskite BiCu₃Fe₄O₁₂

Y. W. Long*, T. Saito, T. Tohyama, K. Oka, M. Azuma, Y. Shimakawa

Inorganic Chemistry48, 8489 (2009)

10. A study on high-pressure Raman scattering and crystal structural phase transition of CaCrO₄ and YCrO₄

Y. W. Long, L. X. Yang, and C. Q. Jin

The Journal of Light Scattering21, 142 (2009)

9. High-pressure Raman scattering study on zircon- to scheelite-type structural phase transitions of RCrO₄

Y. W. Long*, L. X. Yang, Y. Yu, F. Y. Li, Y. X. Lu, R. C. Yu, Y. L. Liu, and C. Q. Jin

Journal of Applied Physics103, 093542 (2008)

8. Pressure induced metallization in ACrO₃ in perovskite compounds

L. X. Yang, Y. W. Long, C. Q. Jin*, R. C. Yu, J. S. Zhou, J. B. Goodenough, H. Z. Liu, G. Y. Shen, and H. K. Mao

Journal of Physics: Conference Series121, 022017 (2008)

7. Synthesis, structure, magnetism and specific heat of YCrO₄ and its zircon-to-scheelite phase transition

Y. W. Long, L. X. Yang, Y. Yu, F. Y. Li, R. C. Yu, and C. Q. Jin*

Physical Review B75, 104402 (2007)

6. High-pressure synthesis and metallization of a new type of bandwidth-controlled Mott compounds

Y. W. Long, L. X. Yang, C. Q. Jin*, J. S. Zhou, and J. B. Goodenough

Wuli36, 584 (2007)

5. Anomalous electronic state in CaCrO₃ and SrCrO₃

J. S. Zhou*, C. Q. Jin, Y. W. Long, L. X. Yang, J. B. Goodenough

Physical Review Letters96, 046408 (2006)

4. High-pressure Raman scattering and structural phase transition in YCrO₄

Y. W. Long, L. X. Yang, Y. Yu, F. Y. Li, R. C. Yu, S. Ding, Y. L. Liu, and C. Q. Jin*

Physical Review B 74, 054110 (2006)

3. Crystal structural phase transition in CaCrO₄ under high pressure

Y. W. Long, L. X. Yang, S. J. You, Y. Yu, R. C. Yu, C. Q. Jin*, and J. Liu

Journal of Physics: Condensed Matter18, 2421 (2006)

2. First-principles calculations on the pressure induced zircon-type to scheelite-type phase transition of CaCrO₄

L. Y. Li, W. Yu, Y. W. Long, C. Q. Jin*

Solid State Communications137, 358 (2006)

1. Pressure-induced structural phase transition in CaCrO4: Evidence from Raman scattering studies

Y. W. Long, W. W. Zhang, L. X. Yang, Y. Yu, R. C. Yu, S. Ding, Y. L. Liu, and C. Q. Jin*

Applied Physics Letters 87, 181901 (2005)

立方鈣鈦礦磁電多鐵性材料的發(fā)現(xiàn)

磁電多鐵性材料是指同時具有磁有序與電極化有序的一類多功能材料，利用兩種有序的共存和相互耦合，可以實(shí)現(xiàn)磁場調(diào)控電極化或用電場改變磁性質(zhì)。近十年來，多鐵性材料由于豐富的物理內(nèi)含和廣泛的應(yīng)用前景，一直是凝聚態(tài)物理和材料科學(xué)的一個研究熱點(diǎn)。鈣鈦礦氧化物是研究鐵電與多鐵性最重要的材料體系之一。在傳統(tǒng)鈣鈦礦鐵電體中，電極化來源于離子位移導(dǎo)致空間反演對稱性的破缺。因此，人們通常認(rèn)為在具有空間反演中心的高對稱性晶格如立方晶格中，不會出現(xiàn)鐵電有序。事實(shí)上，人們從未在立方鈣鈦礦體系中觀察到鐵電性。然而，在多鐵性材料中，電極化的產(chǎn)生不再局限于離子位移，可以具有更加多樣化的起源，甚至與自旋結(jié)構(gòu)密切相關(guān)；同時，體系的總對稱性也由晶體對稱性和磁對稱性共同決定，并不要求各自破環(huán)空間反演對稱。一些特殊情況下，高對稱性的立方晶格也可能表現(xiàn)出電極化和多鐵性。但是，迄今為止，人們尚未找到具有立方鈣鈦礦晶格多鐵性的真實(shí)案例。近期，中國科學(xué)院物理研究所/北京凝聚態(tài)物理國家實(shí)驗(yàn)室（籌）極端條件物理重點(diǎn)實(shí)驗(yàn)室Ex6組龍有文“**計劃”特聘研究員與磁學(xué)國家重點(diǎn)實(shí)驗(yàn)室M06組柴一晟副研究員、孫陽研究員等合作，在立方晶格多鐵性的研究方面取得了突破性進(jìn)展，首次發(fā)現(xiàn)一種立方晶格鈣鈦礦多鐵性材料。

化學(xué)組成為AA'₃B₄O₁₂的A位有序鈣鈦礦為實(shí)現(xiàn)立方晶格多鐵性提供了可能。在這個特殊有序的材料體系中，A'位與B位同時容納過渡金屬離子，可產(chǎn)生諸如A'-A'，A'-B，B-B等多種磁電相互作用。因而，通過選擇合適的A'位與B位過渡金屬離子，一方面可以保持材料的立方晶體結(jié)構(gòu)，另一方面亦可形成特定的自旋有序結(jié)構(gòu)，并誘導(dǎo)出多鐵性。A位有序鈣鈦礦往往只在高溫高壓的極端條件下才能獲得。龍有文特聘研究員長期從事新型A位有序鈣鈦礦的高壓制備，近年來發(fā)現(xiàn)了多種高壓合成新體系的多種新穎物理性質(zhì)。例如，首次在高壓下獲得了具有反常負(fù)熱膨脹的磁電多功能材料體系LaCu₃Fe₄O₁₂ [Long* et al, Nature, 458, 60 (2009)，入選當(dāng)期Nature封內(nèi)推薦論文；Mater. Chem. 24, 2235 (2012)]; 反常電子態(tài)體系LaMn₃Ti₄O₁₂ [Long* et al, JACS, 131, 16244 (2009)]等等。最近，利用研究團(tuán)隊(duì)集成的綜合性能優(yōu)越的高壓高溫制備系統(tǒng)，龍有文指導(dǎo)研究生王瀟、周龍等人在高壓高溫條件下獲得了A位有序鈣鈦礦LaMn₃Cr₄O₁₂。結(jié)構(gòu)分析表明，該體系在實(shí)驗(yàn)測試的溫區(qū)內(nèi)（2-300 K）始終保持空間群為Im-3的立方晶體結(jié)構(gòu)。磁化率測試顯示這個材料在150 K與50 K存在兩個反鐵磁相變，中子衍射進(jìn)一步確定150 K（T_Cr）的反鐵磁相變來自B位Cr³⁺-亞晶格的自旋有序，而50 K（T_Mn）的反鐵磁相變則來自于A'位Mn³⁺-亞晶格的自旋有序。中子精修實(shí)驗(yàn)結(jié)果表明，這兩套磁性亞晶格均具有G-型反鐵磁自旋結(jié)構(gòu)，自旋取向沿晶體的[111]方向。在這個體系中，雖然單獨(dú)的Cr-亞晶格與Mn-亞晶格具有非極化的磁空間群，但當(dāng)把這兩套磁性亞晶格當(dāng)做一個整體考慮時，可獲得一個具有極性的磁空間群，從而滿足產(chǎn)生電極化的對稱性要求。利用自主研制的多功能磁電耦合效應(yīng)測量系統(tǒng)，柴一晟與孫陽等詳細(xì)測試了LaMn₃Cr₄O₁₂的介電常數(shù)與熱釋電效應(yīng)，發(fā)現(xiàn)在磁有序溫度T_Mn處，出現(xiàn)介電常數(shù)、熱釋電與電極化的急劇改變；當(dāng)外加極化電場方向反轉(zhuǎn)時，熱釋電與電極化的符號也發(fā)生反轉(zhuǎn)，表明伴隨磁有序的出現(xiàn)產(chǎn)生了本征的電極化。并且，外加磁場對電極化與介電常數(shù)有顯著的影響，增大磁場可大大提高熱釋電與電極化的強(qiáng)度。同時，電極化的變化依賴于外加磁場與電場的相對取向，表現(xiàn)出較強(qiáng)的各向異性磁電耦合效應(yīng)。這些實(shí)驗(yàn)結(jié)果清楚地表明，Cr-與Mn-亞晶格的自旋有序?qū)е铝吮菊麟姌O化的出現(xiàn)。因此，LaMn₃Cr₄O₁₂成為第一個被發(fā)現(xiàn)的具有立方鈣鈦礦晶格的多鐵性材料體系。

這項(xiàng)研究不僅在立方晶格多鐵性材料的制備方面取得了重要突破，而且?guī)砹巳碌奈锢硌芯績?nèi)容。密度泛函理論計算顯示磁性離子的自旋-軌道耦合效應(yīng)對電極化的出現(xiàn)起到了至關(guān)重要的作用，但是，現(xiàn)有的幾種磁有序產(chǎn)生多鐵性的理論模型都不足以解釋這種特殊多鐵性的微觀起源，因此需要發(fā)展全新的多鐵性理論模型。此外，由于沒有離子位移的貢獻(xiàn)，該體系的電極化可能完全由電子云的崎變產(chǎn)生，LaMn₃Cr₄O₁₂也成了研究新型電子型鐵電體的典型對象。對立方鈣鈦礦的多鐵性起源和磁電耦合機(jī)制的進(jìn)一步深入探討，可能對多鐵性新材料的探索與新物理機(jī)制的研究產(chǎn)生重要影響。

相關(guān)研究結(jié)果發(fā)表在近期的Phys. Rev. Lett. 115, 087601 (2015)，并被選為PRL Editors’ Suggestion；同時，也被美國物理學(xué)會網(wǎng)站新聞評論欄目Physics選為研究亮點(diǎn)（Highlight），以“出人意料的多鐵性（Multiferroic Surprise）”為題進(jìn)行介紹（http://physics.aps.org/synopsis-for/10.1103/PhysRevLett.115.087601）。該工作的中子衍射實(shí)驗(yàn)與美國橡樹嶺國家實(shí)驗(yàn)室曹慧波博士, Clarina-dela Cruz博士合作完成；理論計算與東南大學(xué)董帥教授合作完成；日本東京工業(yè)大學(xué)M. Azuma教授研究組與京都大學(xué)Y. Shimakawa教授研究組合作制備了部分中子衍射樣品。該工作獲得了科技部青年973項(xiàng)目、中國科學(xué)院**計劃項(xiàng)目、國家青年**計劃項(xiàng)目、國家自然科學(xué)基金委、中國科學(xué)院先導(dǎo)B項(xiàng)目的支持。

圖1：（a）A位有序立方鈣鈦礦LaMn₃Cr₄O₁₂的晶體結(jié)構(gòu)示意圖；（b）不同溫度下的中子粉末衍射譜；（c，d）磁衍射峰（111）與（100）衍射強(qiáng)度隨溫度的變化關(guān)系；（e）B位Cr-亞晶格自旋結(jié)構(gòu)示意圖；（f）A'位Mn-亞晶格自旋結(jié)構(gòu)示意圖；（g）體系總的自旋結(jié)構(gòu)示意圖，自旋取向沿[111]方向。

圖2：（a）A位有序立方鈣鈦礦LaMn₃Cr₄O₁₂的磁化率（χ）與介電常數(shù)（ε）隨溫度的變化關(guān)系；（b）熱釋電電流（I_p）隨溫度的變化關(guān)系；（c）電極化強(qiáng)度（P）隨溫度的變化關(guān)系。

圖3：（a）A位有序立方鈣鈦礦LaMn₃Cr₄O₁₂不同磁場下熱釋電電流隨溫度的變化關(guān)系；（b）不同磁場下凈電極化強(qiáng)度[ΔP = P(T) - P(50 K)]隨溫度的變化關(guān)系；（c、d）不同磁場下H∥E與H⊥E時介電常數(shù)隨溫度的變化關(guān)系。

附件鏈接

http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.115.087601

http://physics.aps.org/synopsis-for/10.1103/PhysRevLett.115.087601

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