龍有文 ，男，中國科學院物理研究所研究員，博士生導師。2007年中科院物理研究所博士，2007-2011年日本京都大學、理化學研究所博士后，2011年9月加入物理所。國家重點研發計劃項目首席，青年973首席科學家，國家自然科學基金委重點項目、北京市重點專項等負責人。現任磁學國家重點實驗室主任，M08課題組長，中國晶體學會理事，極端條件晶體材料專委會副主任委員，中國物理學會電介質物理專委會委員，中國化學會高壓化學專委會委員，榮獲北京市自然科學獎一等獎（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、結構與物性關系、多場調控下的結構與電子態等研究工作，并突破技術瓶頸發明了國際領先的大體積高壓單晶生長方法。利用高壓實驗技術，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象，諸如Mott體的絕緣體-金屬化相變、金屬間電荷轉移、磁電多鐵性與磁電耦合、高溫磁性半金屬與半導體、負熱膨脹等等。在Nature、Nat. Commun.、Phys. Rev. Lett.、J. Am. Chem. Soc.、Adv. Mater.、Nano Lett.等期刊上發表學術論文130余篇，包括特邀綜述8篇，20篇被Nature、PRL、JACS、AM等選為封面、亮點或編輯推薦。在國內外重要會議上做Keynote等特邀報告40余次，在新材料制備與器件設計方面已授權國內外發明專利13項。作為大會秘書合作舉辦了第26屆國際高壓科學與技術大會、第6屆亞洲高壓研討會等多個國內外會議。
教育與工作經歷：
2011.9 – 至今：中科院物理研究所，研究員。
2009.8 - 2011.7 ：日本理化學研究所（Y. Tokura 研究組），博士后。
2007.9 - 2009.7：日本京都大學化學研究所（Y. Shimakawa 研究組），博士后。
2002.9 - 2007.8：中科院物理研究所碩博連讀，博士學位。
1998.9 - 2002.7 ：湖南師范大學物理系，學士學位。
學術兼職：
1、中國晶體學會，理事。
2、中國晶體學會極端條件晶體材料專業委員會，副主任委員。
3、中國科協先進材料學會聯合體青年工作委員會，委員。
4、中國物理學會電介質物理專業委員會，委員。
5、中國化學會高壓化學專業委員會，委員。
6、國家脈沖強磁場科學中心用戶委員會，委員。
7、《高壓物理學報》編委會，委員。
主講課程：
資料更新中……
培養研究生情況：
已出站博士后3名，畢業博士生13名，碩士生6名（含聯陪）。課題組實驗條件優越，學術氛圍濃厚，每年擬招聘碩博連讀研究生或博士生3名，博士后1名，歡迎物理、材料或化學專業的畢業生報考。本組將提供優厚待遇及國際交流機會。
博士后及在讀學生
王瀟 22年博士后，國際青年學者
研究方向：高壓新材料合成與物性研究；X射線吸收譜學
葉旭斌 22年博士后，中科院特別研究助理
研究方向：高壓條件下鈣鈦礦氧化物的合成與物性研究。
楊子煜 訪問學者
研究方向：稀土氧化物中的磁熱效應。
盧達標 21級博士生
研究方向： 新型鈣鈦礦材料的高壓制備與物性研究。
趙浩婷 21級博士生
研究方向： 高壓下多鐵性材料的合成與物性研究
張杰 20級碩士生
研究方向： 新型鈣鈦礦氧化物的高壓探索與物性研究
皮茂材 21級碩士生
研究方向： 新型鈣鈦礦氧化物的高壓探索與物性研究
陳兆亮 21級聯合培養碩士生
研究方向： 新型鈣鈦礦氧化物的高壓探索與物性研究
宋偉賓 21級聯合培養碩士生
研究方向：鈣鈦礦型功能氧化物薄膜材料的制備與物性研究
彭錦鋒 21級聯合培養碩士生
研究方向：A-B-位有序鈣鈦礦材料的高壓制備與物性研究
葉夢琪 22級聯合培養碩士生
研究方向：鈣鈦礦型功能氧化物薄膜材料的制備與物性研究
劉勝杰 22級聯合培養碩士生
研究方向：多鐵性材料的高壓探索與物性研究
李維浩 22級聯合培養碩士生
研究方向：鉍基無鉛壓電陶瓷的制備、晶體結構及壓電性能研究
葉旭斌，2022屆博士，中科院特別研究助理
覃湜俊，2022屆博士，航天二院
周博文，2022屆博士，中芯國際
劉廣秀，2022屆博士，龍芯中科
郭 家，2022屆博士，人民郵電出版社
劉哲宏，2021屆博士，日本理化學研究所博士后
申旭東，2020屆博士，中科院高能物理研究所東莞研究部散裂中子源科學中心 助理研究員
高 磊，2020屆博士，華中科技大學博士后
王 瀟，2019屆博士，物理所國際青年學者
周 龍，2018屆博士，華為
戴建洪，2018屆博士，中芯國際
殷云宇，2018屆博士，北京綜合極端條件實驗裝置聘用人員
楊俊葉，2016屆博士，中科院高能物理研究所東莞研究部散裂中子源科學中心 助理研究員
李琲泓，2020碩士聯培，高中物理教師
劉宇軒，2019碩士聯培，中山大學博士生
夏海亮，2017碩士聯培，清華大學博士生
田興波，2017碩士聯培，藍思科技工程師
趙 慶，2016碩士聯培，日本廣島大學博士生
鄧宏芟，2016碩士聯培，北京高壓科學研究中心博士生
招生信息
每年擬招聘碩博連讀研究生或博士生2-3名，博士后1名，歡迎物理、材料或化學專業的畢業生報考。本組將提供優厚待遇及國際交流機會。
招生專業
070205-凝聚態物理
080502-材料學
招生方向
高壓新材料與物理
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控的磁電耦合多功能材料，是研制未來先進電子器件的關鍵。由于常壓下能夠形成的材料體系是有限的，為獲得重大進展，本課題組致力于突破常規材料制備限制，發展國際領先的高壓高溫等超常規制備方法，通過設計特殊晶體結構與過渡金屬離子組合，研制常規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構與綜合物理性質，發掘內在的結構-性能關系，為面向應用的多功能耦合電子器件的研究提供潛在材料基礎。
1. 新型磁電量子功能材料的高壓制備與物性研究。
本方向結合前沿探索與潛在應用，發揮高壓高溫合成條件不可替代的研究優勢，制備常規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、高溫磁性半導體、拓撲磁電材料等等，發現新現象與新效應，促進潛在的實際應用。
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及面向應用的最佳體系，大體積高壓單晶生長是長期困擾研究人員的國際難題，本方向突破技術瓶頸發展國際領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的內秉性能，利用功能晶體構筑可能的電子元器件。
3. 新奇電子態化合物的多場調控
高壓既是重要的材料制備方法，也是有效的性能調控方法，本方向通過原位高壓壓縮原子間距、增強軌道雜化、擴展能帶寬度等方式，并結合溫度、磁場、電場、光場等綜合條件，研究多元外場調控下的新穎量子效應與新奇物態。
4. 負熱膨脹新材料探索、調控與機理
熱脹冷縮是電子器件應用過程中需要避免但又普遍存在的問題，負熱膨脹（即熱縮冷脹）材料的出現為調控其熱膨脹系數提供了解決方案。本方向立足于磁電相關負熱膨脹材料基礎與應用前沿，發揮本課題組高溫高壓合成優勢，探索新型的熱膨脹可控的磁、電、熱多功能材料體系，闡明相關物理機制與潛在應用。
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裝置，能夠提供電子多自由度的相關信息。本方向利用多種中子和X射線散射手段，精細測量磁性材料的磁有序、電子軌道貢獻和各類元激發，并據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理。
承擔科研項目情況：
國家重點研發計劃、基金委重點項目、北京市重點專項等。
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、結構與物性關系、多場調控下的結構與電子態等研究工作，并突破技術瓶頸發明了國際領先的大體積高壓單晶生長方法。利用高壓實驗技術，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象，諸如Mott體的絕緣體-金屬化相變、金屬間電荷轉移、磁電多鐵性與磁電耦合、磁電拓撲物性、高溫磁性半金屬與半導體、負熱膨脹等等。在Nature、Nat. Commun.、Phys. Rev. Lett.、J. Am. Chem. Soc.、Adv. Mater.、Nano Lett.等期刊上發表學術論文130余篇，包括特邀綜述8篇，單篇最高他引300余次。相關工作入選Nature封內推薦論文、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，被JPCM推薦為年度亮點論文（5%入選率）。在國內外重要會議上做Keynote等特邀報告40余次，在新材料制備與器件設計方面已授權國內外發明專利13項。作為大會秘書合作舉辦了第26屆國際高壓科學與技術大會、第6屆亞洲高壓研討會等多個國內外會議。
研究課題及展望：
科技突破與社會發展很大程度上取決于先進功能材料的發現與更新。在常規燒結條件下，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合成手段，是目前新材料探索領域內具有重要戰略意義的發展方向。我們長期致力于發展極端的制備條件，以得到基礎研究與應用研究并重的新型功能材料。同時，運用多種調控手段研究物質的晶體結構與電子性質，發掘結構-物性關系，以便設計特殊性能的新型材料。本人受科技部、基金委、中科院、北京市等項目的支持，正開展這些實驗凝聚態物理與材料科學的前沿研究工作。
國外發明專利
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）
發明公開：
[1]龍有文, 趙浩婷. 鐵磁強絕緣材料及其制備方法[P]. 北京市: CN117637275A, 2024-03-01.
[2]龍有文, 盧達標. 磁場可調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. 鐵電光伏半導體材料Hg0.75Pb0.25MnO3及其制備方法和應用[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Sr2CrFeO5.75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CaFe0.7 Co0.3 O3 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. Sr1-xCaxCrO3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.
發明授權：
[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Sr2CrFeO5.75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CaFe0.7Co0.3O3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 發明授權[P]. 北京市: CN104671755B, 2017-01-18.
[11]龍有文, 楊留響, 靳常青. Sr1-xCaxCrO3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)
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 (Bi0.5Ag0.5)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)
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*
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)
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 NbxMo1-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*
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)
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(Co1−xFex)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 TC 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(Pt0.9Pd0.1)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)
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 LaCu3Fe4-xOsxO12 (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 SrCoO2.5 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)
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)
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)
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 BAsx
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)
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)
71. Characterization of magnetic symmetry and electric polarization of YCr0.5Fe0.5O3
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)
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)
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 Ba0.8Sr0.2FeO3-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 CaCr0.5Fe0.5O3 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 SrCoO2.5 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 La0.6Sr0.4Co0.2Fe0.8O2.9 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)
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 CaFe0.7Co0.3O3
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 SrxCa1-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 CaCu3Cu2Ir2O12-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)
31. A-site ordered quadruple perovskite oxides AA'3B4O12
Y. W. Long*
Chinese Physics B 25, 078108 (2016)
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)
被選為編輯推薦論文，被美國物理學會評價欄目Physics選為亮點推薦論文
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 CaFe0.7Co0.3O3
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 SrFe0.8Co0.2O3 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)
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 SrFe1-xCoxO3 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 Sr1-xCaxCrO3 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)
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)
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)
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)
榮譽獎勵：
1、2022年度北京市自然科學獎一等獎（排名第二）。
2、2006年中國物理學會高壓物理專業委員會優秀論文獎。
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，可以實現磁場調控電極化或用電場改變磁性質。近十年來，多鐵性材料由于豐富的物理內含和廣泛的應用前景，一直是凝聚態物理和材料科學的一個研究熱點。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。在傳統鈣鈦礦鐵電體中，電極化來源于離子位移導致空間反演對稱性的破缺。因此，人們通常認為在具有空間反演中心的高對稱性晶格如立方晶格中，不會出現鐵電有序。事實上，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，甚至與自旋結構密切相關；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案例。近期，中國科學院物理研究所/北京凝聚態物理國家實驗室（籌）極端條件物理重點實驗室Ex6組龍有文“**計劃”特聘研究員與磁學國家重點實驗室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展，首次發現一種立方晶格鈣鈦礦多鐵性材料。
化學組成為AA'3B4O12的A位有序鈣鈦礦為實現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構，另一方面亦可形成特定的自旋有序結構，并誘導出多鐵性。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，近年來發現了多種高壓合成新體系的多種新穎物理性質。例如，首次在高壓下獲得了具有反常負熱膨脹的磁電多功能材料體系LaCu3Fe4O12 [Long* et al, Nature, 458, 60 (2009)，入選當期Nature封內推薦論文；Mater. Chem. 24, 2235 (2012)]; 反常電子態體系LaMn3Ti4O12 [Long* et al, JACS, 131, 16244 (2009)]等等。最近，利用研究團隊集成的綜合性能優越的高壓高溫制備系統，龍有文指導研究生王瀟、周龍等人在高壓高溫條件下獲得了A位有序鈣鈦礦LaMn3Cr4O12。結構分析表明，該體系在實驗測試的溫區內（2-300 K）始終保持空間群為Im-3的立方晶體結構。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，中子衍射進一步確定150 K（TCr）的反鐵磁相變來自B位Cr3+-亞晶格的自旋有序，而50 K（TMn）的反鐵磁相變則來自于A'位Mn3+-亞晶格的自旋有序。中子精修實驗結果表明，這兩套磁性亞晶格均具有G-型反鐵磁自旋結構，自旋取向沿晶體的[111]方向。在這個體系中，雖然單獨的Cr-亞晶格與Mn-亞晶格具有非極化的磁空間群，但當把這兩套磁性亞晶格當做一個整體考慮時，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測量系統，柴一晟與孫陽等詳細測試了LaMn3Cr4O12的介電常數與熱釋電效應，發現在磁有序溫度TMn處，出現介電常數、熱釋電與電極化的急劇改變；當外加極化電場方向反轉時，熱釋電與電極化的符號也發生反轉，表明伴隨磁有序的出現產生了本征的電極化。并且，外加磁場對電極化與介電常數有顯著的影響，增大磁場可大大提高熱釋電與電極化的強度。同時，電極化的變化依賴于外加磁場與電場的相對取向，表現出較強的各向異性磁電耦合效應。這些實驗結果清楚地表明，Cr-與Mn-亞晶格的自旋有序導致了本征電極化的出現。因此，LaMn3Cr4O12成為第一個被發現的具有立方鈣鈦礦晶格的多鐵性材料體系。
這項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，而且帶來了全新的物理研究內容。密度泛函理論計算顯示磁性離子的自旋-軌道耦合效應對電極化的出現起到了至關重要的作用，但是，現有的幾種磁有序產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，因此需要發展全新的多鐵性理論模型。此外，由于沒有離子位移的貢獻，該體系的電極化可能完全由電子云的崎變產生，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制的進一步深入探討，可能對多鐵性新材料的探索與新物理機制的研究產生重要影響。
相關研究結果發表在近期的Phys. Rev. Lett. 115, 087601 (2015)，并被選為PRL Editors’ Suggestion；同時，也被美國物理學會網站新聞評論欄目Physics選為研究亮點（Highlight），以“出人意料的多鐵性（Multiferroic Surprise）”為題進行介紹（http://physics.aps.org/synopsis-for/10.1103/PhysRevLett.115.087601）。該工作的中子衍射實驗與美國橡樹嶺國家實驗室曹慧波博士, Clarina-dela Cruz博士合作完成；理論計算與東南大學董帥教授合作完成；日本東京工業大學M. Azuma教授研究組與京都大學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項目、中國科學院**計劃項目、國家青年**計劃項目、國家自然科學基金委、中國科學院先導B項目的支持。
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| 圖1：（a）A位有序立方鈣鈦礦LaMn3Cr4O12的晶體結構示意圖；（b）不同溫度下的中子粉末衍射譜；（c，d）磁衍射峰（111）與（100）衍射強度隨溫度的變化關系；（e）B位Cr-亞晶格自旋結構示意圖；（f）A'位Mn-亞晶格自旋結構示意圖；（g）體系總的自旋結構示意圖，自旋取向沿[111]方向。 |
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| 圖2：（a）A位有序立方鈣鈦礦LaMn3Cr4O12的磁化率（χ）與介電常數（ε）隨溫度的變化關系；（b）熱釋電電流（Ip）隨溫度的變化關系；（c）電極化強度（P）隨溫度的變化關系。 |
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| 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系；（b）不同磁場下凈電極化強度[ΔP = P(T) - P(50 K)]隨溫度的變化關系；（c、d）不同磁場下H∥E與H⊥E時介電常數隨溫度的變化關系。 |
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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