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Crystal and magnetic structures of Ce2CuGe6
Qi, Ji; Ren, Weijun; Wang, Chin-Wei; Zhang, Lei; Yu, Chenyang; Zhuang, Yanxin; Zhang, Zhidong
2019-10-15
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume805Pages:1260-1265
AbstractThe 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.
KeywordMagnetic structure Field-induced transition Spin-flip
Indexed BySCI
Language英语
WOS IDWOS:000482184100144
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80702
Collection中国科学院金属研究所
Recommended Citation
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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