Crystal growth, structural and physical properties of the 5d noncentrosymmetric LaOsSi3

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	Crystal growth, structural and physical properties of the 5d noncentrosymmetric LaOsSi3
	Zhang, X ; Miao, SS ; Wang, P ; Zheng, P ; Yin, WL ; Yao, JY ; Jiang, HW ; Wang, H ; Shi, YG
刊名	CHINESE PHYSICS B
	2013
卷号	22 期号:10
关键词	noncentrosymmetric compound LaOsSi3 structural and physical properties
ISSN号	1674-1056
通讯作者	Wang, H (reprint author), Capital Normal Univ, Dept Phys, Beijing 100048, Peoples R China.
中文摘要	LaOsSi3 single crystals are synthesized for the first time by an arc melting method. The crystal features a tetragonal BaNiSn3-type structure (space group I4mm) which lacks inversion symmetry along the crystallographic c axis and is isostructural with the intensively studied Rashba-type noncentrosymmetric superconductors LaRhSi3 and LaIrSi3. Unlike LaRhSi3 and LaIrSi3 displaying superconductivity, LaOsSi3 shows only metallic behavior over the measured temperature range of 2 K-300 K. The Sommerfeld coefficient gamma derived from specific heat is 5.76 mJ.mol(-1).K-2, indicating that LaOsSi3 has a weak electronic correlation effect. The absence of superconductivity in LaOsSi3 may lie in the Os 5d bands in the electronic structure. If it is true, it would be useful to provide complementary knowledge in understanding the relation between conduction and the d bands of M in LaMSi3 compounds (M = transition metals).
资助信息	National Natural Science Foundation of China [11274367, 10904097, 11274233]; Chinese Academy of Sciences
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/56857]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Zhang, X,Miao, SS,Wang, P,et al. Crystal growth, structural and physical properties of the 5d noncentrosymmetric LaOsSi3[J]. CHINESE PHYSICS B,2013,22(10).
APA	Zhang, X.,Miao, SS.,Wang, P.,Zheng, P.,Yin, WL.,...&Shi, YG.(2013).Crystal growth, structural and physical properties of the 5d noncentrosymmetric LaOsSi3.CHINESE PHYSICS B,22(10).
MLA	Zhang, X,et al."Crystal growth, structural and physical properties of the 5d noncentrosymmetric LaOsSi3".CHINESE PHYSICS B 22.10(2013).