From Claringbullite to a New Spin Liquid Candidate Cu_3Zn(OH)_6FCl  

作　　者：Zili Feng Wei Yi Kejia Zhu Yuan Wei Shanshan Miao Jie Ma Jianlin Luo Shiliang Li Zi Yang Meng Youguo Shi 冯子力;衣玮;朱恪嘉;魏源;苗杉杉;马杰;雒建林;李世亮;孟子杨;石友国(Beijing National Laboratory of Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences;School of Physical Sciences, University of Chinese Academy of Sciences;Nano Electronics Device Materials group, National Institute for Materials Science (NIMS);Key Laboratory of Artificial Structures and Quantum Control, School of Physics and Astronomy, Shanghai Jiao Tong University;Collaborative Innovation Center of Advanced Microstructures;Collaborative Innovation Center of Quantum Matter;CAS Center of Excellence in Topological Quantum Computation and School of Physical Sciences, University of Chinese Academy of Sciences;Songshan Lake Materials Laboratory)

机构地区：[1]Beijing National Laboratory of Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences [2]School of Physical Sciences, University of Chinese Academy of Sciences [3]Nano Electronics Device Materials group, National Institute for Materials Science (NIMS) [4]Key Laboratory of Artificial Structures and Quantum Control, School of Physics and Astronomy, Shanghai Jiao Tong University [5]Collaborative Innovation Center of Advanced Microstructures [6]Collaborative Innovation Center of Quantum Matter [7]CAS Center of Excellence in Topological Quantum Computation and School of Physical Sciences, University of Chinese Academy of Sciences [8]Songshan Lake Materials Laboratory

出　　处：《Chinese Physics Letters》2019年第1期70-74,共5页中国物理快报（英文版）

基　　金：Supported by the National Key Research and Development Program(2016YFA0300502,2017YFA0302901,2016YFA0300604 and 2016YFA0300501);the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB28000000,XDB07020100and QYZDB-SSW-SLH043);the National Natural Science Foundation of China under Grant Nos 11421092,11574359,11674370,11774399,11474330 and U1732154

摘　　要：The search for quantum spin liquid(QSL) materials has attracted significant attention in the field of condensed matter physics in recent years, however so far only a handful of them are considered as candidates hosting QSL ground state. Owning to their geometrically frustrated structures, Kagome materials are ideal systems to realize QSL. We synthesize the kagome structured material claringbullite(Cu_4(OH)_6FCl) and then replace inter-layer Cu with Zn to form Cu_3Zn(OH)_6FCl. Comprehensive measurements reveal that doping Zn^(2+) ions transforms magnetically ordered Cu_4(OH)_6FCl into a non-magnetic QSL candidate Cu_3Zn(OH)_6FCl. Therefore,the successful syntheses of Cu_4(OH)_6FCl and Cu_3Zn(OH)_6FCl provide not only a new platform for the study of QSL but also a novel pathway of investigating the transition between QSL and magnetically ordered systems.The search for quantum spin liquid(QSL) materials has attracted significant attention in the field of condensed matter physics in recent years, however so far only a handful of them are considered as candidates hosting QSL ground state. Owning to their geometrically frustrated structures, Kagome materials are ideal systems to realize QSL. We synthesize the kagome structured material claringbullite(Cu_4(OH)_6FCl) and then replace inter-layer Cu with Zn to form Cu_3Zn(OH)_6FCl. Comprehensive measurements reveal that doping Zn^(2+) ions transforms magnetically ordered Cu_4(OH)_6FCl into a non-magnetic QSL candidate Cu_3Zn(OH)_6FCl. Therefore,the successful syntheses of Cu_4(OH)_6FCl and Cu_3Zn(OH)_6FCl provide not only a new platform for the study of QSL but also a novel pathway of investigating the transition between QSL and magnetically ordered systems.

关 键 词：Clarinbrey STONE Cu3Zn(OH)6FCl QSL 

分 类 号：O4[理学—物理]