NMR evidence of charge fluctuations in multiferroic CuBr2

doi:10.1088/1674-1056/27/3/037502

中国物理B ›› 2018, Vol. 27 ›› Issue (3): 37502-037502.doi: 10.1088/1674-1056/27/3/037502

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

NMR evidence of charge fluctuations in multiferroic CuBr₂

1 College of Physics, Qingdao University, Qingdao 266071, China;
2 Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Natual Materials & Micro-nano Devices, Renmin University of China, Beijing 100872, China;
3 Mathematics and Physics Department, North China Electric Power University, Beijing 102206, China;
4 International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China

收稿日期:2017-11-09 修回日期:2017-12-22 出版日期:2018-03-05 发布日期:2018-03-05
通讯作者: Sheng Xu, Feng Yuan, Wei-Qiang Yu E-mail:shengxu@qdu.cdu.cn;yuan@qdu.edu.cn;wqyu_phy@ruc.edu.cn
基金资助:
Project supported by the Ministry of Science and Technology of China (Grant No. 2016YFA0300504), the National Natural Science Foundation of China (Grant No. 11374364), the Fundamental Research Funds for the Central Universities of China, and the Research Funds of Renmin University, China (Grant No. 14XNLF08).

NMR evidence of charge fluctuations in multiferroic CuBr₂

Rui-Qi Wang(王瑞琦)^1,2, Jia-Cheng Zheng(郑家成)², Tao Chen(陈涛)², Peng-Shuai Wang(王朋帅)², Jin-Shan Zhang(张金珊)³, Yi Cui(崔祎)², Chong Wang(王冲)⁴, Yuan Li(李源)⁴, Sheng Xu(徐胜)¹, Feng Yuan(袁峰)¹, Wei-Qiang Yu(于伟强)²

1 College of Physics, Qingdao University, Qingdao 266071, China;
2 Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Natual Materials & Micro-nano Devices, Renmin University of China, Beijing 100872, China;
3 Mathematics and Physics Department, North China Electric Power University, Beijing 102206, China;
4 International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China

Received:2017-11-09 Revised:2017-12-22 Online:2018-03-05 Published:2018-03-05
Contact: Sheng Xu, Feng Yuan, Wei-Qiang Yu E-mail:shengxu@qdu.cdu.cn;yuan@qdu.edu.cn;wqyu_phy@ruc.edu.cn
Supported by:
Project supported by the Ministry of Science and Technology of China (Grant No. 2016YFA0300504), the National Natural Science Foundation of China (Grant No. 11374364), the Fundamental Research Funds for the Central Universities of China, and the Research Funds of Renmin University, China (Grant No. 14XNLF08).

摘要/Abstract

摘要：

We report combined magnetic susceptibility, dielectric constant, nuclear quadruple resonance (NQR), and zero-field nuclear magnetic resonance (NMR) measurements on single crystals of multiferroics CuBr₂. High quality of the sample is demonstrated by the sharp magnetic and magnetic-driven ferroelectric transition at T_N=T_C≈ 74 K. The zero-field ⁷⁹Br and ⁸¹Br NMR are resolved below T_N. The spin-lattice relaxation rates reveal charge fluctuations when cooled below 60 K. Evidences of an increase of NMR linewidth, a reduction of dielectric constant, and an increase of magnetic susceptibility are also seen at low temperatures. These data suggest an emergent instability which competes with the spiral magnetic ordering and the ferroelectricity. Candidate mechanisms are discussed based on the quasi-one-dimensional nature of the magnetic system.

关键词: nuclear magnetic resonance, CuBr₂, charge fluctuations

Abstract:

Key words: nuclear magnetic resonance, CuBr₂, charge fluctuations

中图分类号: (Magnetoelectric effects, multiferroics)

75.85.+t

76.60.-k (Nuclear magnetic resonance and relaxation) 77.80.-e (Ferroelectricity and antiferroelectricity)

王瑞琦, 郑家成, 陈涛, 王朋帅, 张金珊, 崔祎, 王冲, 李源, 徐胜, 袁峰, 于伟强. NMR evidence of charge fluctuations in multiferroic CuBr₂[J]. 中国物理B, 2018, 27(3): 37502-037502.

Rui-Qi Wang(王瑞琦), Jia-Cheng Zheng(郑家成), Tao Chen(陈涛), Peng-Shuai Wang(王朋帅), Jin-Shan Zhang(张金珊), Yi Cui(崔祎), Chong Wang(王冲), Yuan Li(李源), Sheng Xu(徐胜), Feng Yuan(袁峰), Wei-Qiang Yu(于伟强). NMR evidence of charge fluctuations in multiferroic CuBr₂[J]. Chin. Phys. B, 2018, 27(3): 37502-037502.

参考文献 31

[1]	Eerenstein W, Mathur N D and Scott J F 2006 Nature 442 759
[2]	Khomskii D I 2006 J. Magn. Magn. Mater. 306 1
[3]	Wang J, Neaton J B, Zheng H, Nagarajan V, Ogale S B, Liu B, Viehland D, Vaithyanathan V, Schlom D G, Waghmare U V, Spaldin N A, Rabe K M, Wuttig M and Ramesh R 2003 Science 299 1719
[4]	Hur N, Park S, Sharma P A, Ahn J S, Guha S and Cheong S W 2004 Nature 429 392
[5]	Choi Y J, Yi H T, Lee S, Huang Q, Kiryukhin V and Cheong S W 2008 Phys. Rev. Lett. 100 047601
[6]	Katsura H, Balatsky A V and Nagaosa N 2007 Phys. Rev. Lett. 98 027203
[7]	Sergienko I A and Dagotto E 2006 Phys. Rev. B 73 094434
[8]	Cheong S W and Mostovoy M 2007 Nat. Mater. 6 13
[9]	Spaldin N A, Cheong S W and Ramesh R 2010 Phys. Today 63 38
[10]	Banks M G, Kremer R K, Hoch C, Simon A, Ouladdiaf B, Broto J M, Rakoto H, Lee C and Whangbo M H 2009 Phys. Rev. B 80 024404
[11]	Seki S, Kurumaji T, Ishiwata S, Matsui H, Murakawa H, Tokunaga Y, Kaneko Y, Hasegawa T and Tokura Y 2010 Phys. Rev. B 82 064424
[12]	Zhao L, Hung T L, Li C C, Chen Y Y, Wu M K, Kremer R K, Banks M G, Simon A, Whangbo M H, Lee C, Kim J S, Kim I and Kim K H 2012 Adv. Mater. 24 2469
[13]	Barraclough C G and Ng C F 1964 Trans. Faraday Soc. 60 836
[14]	Lee C, Liu J, Whangbo M H, Koo H J, Kremer R K and Simon A 2012 Phys. Rev. B 86 060407
[15]	Lebernegg S, Schmitt M, Tsirlin A A, Janson O and Rosner H 2013 Phys. Rev. B 87 155111
[16]	Esaki T, Shimizu Y, Takami T, Itoh M, He Z Z and Ueda Y 2010 J. Phys.:Conf. Ser. 200 012070
[17]	Zhang J, Ma L, Dai J, Zhang Y P, He Z Z, Normand B and Yu W Q 2014 Phys. Rev. B 89 174412
[18]	Guibé L and Montabonel M C 1978 J. Mag. Res. 31 419
[19]	Morgen P and Filho W W 1975 J. Chem. Phys. 62 2183
[20]	Bastow T J, Whitfield H J and Bristow G K 1981 Phys. Lett. A 84 266
[21]	Baston T J and Whitfield H J 1980 J. Mol. Struct. 58 305
[22]	Wang C, Yu D, Liu X, Chen R, Liu X, Du X, Wang L, Iida K, Kamazawa K, Wakimoto S, Feng J, Wang N and Li Y 2017 Phys. Rev. B 96 085111
[23]	Abragam A 1961 in The Principle of Nuclear Magnetism (Oxford University Press)
[24]	Pound R V 1950 Phys. Rev. 79 685
[25]	Obata Y 1964 J. Phys. Soc. Jpn. 19 2348
[26]	Kiryukhin V and Keimer B 1995 Phys. Rev. B 52 R704
[27]	Rückamp R, Baier J, Kriener M, Haverkort M W, Lorenz T, Uhrig G S, Jongen L, Möller A, Meyer G and Grüninger M 2005 Phys. Rev. Lett. 95 097203
[28]	Fujiyama S, Takigawa M, Horii S, Motoyama N, Eisaki H and Uchida S 2002 J. Phys. Chem. Solid. 63 1119
[29]	Chow D S, Zamborszky F, Alavi B, Tantillo D J, Baur A, Merlic C A and Brown S E 2000 Phys. Rev. Lett. 85 1698
[30]	Wu T, Mayaffre H, Kr?mer, M. Horvatić, Berthier C, Hardy W N, Liang R, Bonn D A and Julien M H 2011 Nature 477 191
[31]	Wang P S, Zhou P, Dai J, Zhang J, Ding X X, Lin H, Wen H H, Normand B, Yu R and Yu W Q 2016 Phys. Rev. B 93 085129

NMR evidence of charge fluctuations in multiferroic CuBr₂

NMR evidence of charge fluctuations in multiferroic CuBr₂

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