中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
Spin freezing in the van der Waals material Mn2Ga2S5

文献类型：期刊论文

作者Shen, Jie1,2; Xu, Xitong1; He, Miao1,2; Liu, Yonglai1,2; Han, Yuyan1,2; Qu, Zhe1,2
刊名CHINESE PHYSICS B
出版日期2022-06-01
卷号31
关键词geometrical frustration van der Waals material spin freezing
ISSN号1674-1056
DOI10.1088/1674-1056/ac657c
通讯作者Qu, Zhe(zhequ@hmfl.ac.cn)
英文摘要Geometrical frustration in low-dimensional magnetic systems has been an intriguing research aspect, where the suppression of conventional magnetic order may lead to exotic ground states such as spin glass or spin liquid. In this work we report the synthesis and magnetism study of the monocrystalline Mn2Ga2S5, featuring both the van der Waals structure and a bilayered triangular Mn lattice. Magnetic susceptibility reveals a significant antiferromagnetic interaction with a Curie-Weiss temperature theta (w) similar to -260 K and a high spin S = 5/2 Mn2+ state. However, no long range magnetic order has been found down to 2 K, and a spin freezing transition is found to occur at around 12 K well below its theta (w). This yields a frustration index of f = -theta (w)/T (f) approximate to 22, an indication that the system is highly frustrated. The absence of a double-peak structure in magnetic specific heat compared with the TM S-2(4) compounds implies that the spin freezing behavior in Mn2Ga2S5 is a result of the competition between exchange interactions and the 2D crystalline structure. Our results suggest that the layered Mn2Ga2S5 would be an excellent candidate for investigating the physics of 2D magnetism and spin disordered state.
WOS关键词MAGNETIC-PROPERTIES ; FRUSTRATION
资助项目National Natural Science Foundation of China[U1832214] ; National Natural Science Foundation of China[11774007] ; National Natural Science Foundation of China[U2032213] ; National Natural Science Foundation of China[12104461]
WOS研究方向Physics
语种英语
WOS记录号WOS:000807771400001
出版者IOP Publishing Ltd
资助机构National Natural Science Foundation of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/131163]  
专题中国科学院合肥物质科学研究院
通讯作者Qu, Zhe
作者单位1.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, CAS Key Lab Photovolta & Energy Conservat Mat, High Magnet Field Lab,Hefei Inst Phys Sci, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Shen, Jie,Xu, Xitong,He, Miao,et al. Spin freezing in the van der Waals material Mn2Ga2S5[J]. CHINESE PHYSICS B,2022,31.
APA Shen, Jie,Xu, Xitong,He, Miao,Liu, Yonglai,Han, Yuyan,&Qu, Zhe.(2022).Spin freezing in the van der Waals material Mn2Ga2S5.CHINESE PHYSICS B,31.
MLA Shen, Jie,et al."Spin freezing in the van der Waals material Mn2Ga2S5".CHINESE PHYSICS B 31(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。