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Crystal and magnetic structures of Ce2CuGe6

文献类型：期刊论文

作者Qi, Ji1,2; Ren, Weijun2; Wang, Chin-Wei3; Zhang, Lei2; Yu, Chenyang2; Zhuang, Yanxin1; Zhang, Zhidong2
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2019-10-15
卷号805页码:1260-1265
ISSN号0925-8388
关键词Magnetic structure Field-induced transition Spin-flip
DOI10.1016/j.jallcom.2019.07.196
通讯作者Ren, Weijun(wjren@imr.ac.cn) ; Wang, Chin-Wei(wang.cw@nsrrc.org.tw)
英文摘要The crystal and magnetic structures of Ce2CuGe6 compound were characterized by means of X-ray diffraction, neutron diffraction, magnetization, electrical resistivity, and magnetoresistance measurements. In this work, the crystal structure of Ce2CuGe6 was corrected to be orthorhombic Ce-2(GaGe)(7)-type with C-mca space group based on the data of X-ray diffraction and neutron powder diffraction experiments. The results obtained in magnetic measurements and neutron powder diffraction suggest that Ce3+ (F-2(5/2)) is the only magnetic species in the compound. Below its Neel temperature T-N = 14.47(8) K, the Ce moments order in the structure composed of ferromagnetic bi-layers alternately stacking along the c-axis and the easy axis is along the crystallographic b-axis. The neutron diffraction results could explain the field-induced ferromagnetic component along c-axis below T-N, and a spin-flip transition at the critical field H-c similar to 12 kOe along b-axis. Ce2CuGe6 exhibits metallic electrical transport between 2 and 300 K. The magnetic scattering among the crystalline electric field (CEF) of the rare earth ions in the paramagnetic state dominates the low-temperature electrical transport behavior. Besides, the metamagnetic transition is also evidenced as a discontinuous jump in the magnetoresistance. (C) 2019 Elsevier B.V. All rights reserved.
资助项目National Natural Science Foundation of China[51671192] ; National Natural Science Foundation of China[51531008] ; Chinese Academy of Sciences[KJZD-EW-M05] ; National Key Research and Development Program of China[2017YFB0702701]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000482184100144
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences ; National Key Research and Development Program of China
源URL[http://ir.imr.ac.cn/handle/321006/135438]  
专题金属研究所_中国科学院金属研究所
通讯作者Ren, Weijun; Wang, Chin-Wei
作者单位1.Northeastern Univ, Key Lab Electromagnet Proc Mat, Shenyang 110819, Liaoning, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
3.Natl Synchrotron Radiat Res Ctr, Hsinchu 30077, Taiwan
推荐引用方式
GB/T 7714		 Qi, Ji,Ren, Weijun,Wang, Chin-Wei,et al. Crystal and magnetic structures of Ce2CuGe6[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,805:1260-1265.
APA Qi, Ji.,Ren, Weijun.,Wang, Chin-Wei.,Zhang, Lei.,Yu, Chenyang.,...&Zhang, Zhidong.(2019).Crystal and magnetic structures of Ce2CuGe6.JOURNAL OF ALLOYS AND COMPOUNDS,805,1260-1265.
MLA Qi, Ji,et al."Crystal and magnetic structures of Ce2CuGe6".JOURNAL OF ALLOYS AND COMPOUNDS 805(2019):1260-1265.

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来源：金属研究所

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