Superconductivity in Strong Spin Orbital Coupling Compound Sb2Se3

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	Superconductivity in Strong Spin Orbital Coupling Compound Sb2Se3
	Kong, PP ; Sun, F ; Xing, LY ; Zhu, J ; Zhang, SJ ; Li, WM ; Liu, QQ ; Wang, XC ; Feng, SM ; Yu, XH ; Zhu, JL ; Yu, RC ; Yang, WG ; Shen, GY ; Zhao, YS ; Ahuja, R ; Mao, HK ; Jin, CQ
刊名	SCIENTIFIC REPORTS
	2014
卷号	4
ISSN号	2045-2322
通讯作者	Zhu, JL (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	Recently, A(2)B(3) type strong spin orbital coupling compounds such as Bi2Te3, Bi2Se3 and Sb2Te3 were theoretically predicated to be topological insulators and demonstrated through experimental efforts. The counterpart compound Sb2Se3 on the other hand was found to be topological trivial, but further theoretical studies indicated that the pressure might induce Sb2Se3 into a topological nontrivial state. Here, we report on the discovery of superconductivity in Sb2Se3 single crystal induced via pressure. Our experiments indicated that Sb2Se3 became superconductive at high pressures above 10 GPa proceeded by a pressure induced insulator to metal like transition at similar to 3 GPa which should be related to the topological quantum transition. The superconducting transition temperature (T-C) increased to around 8.0 K with pressure up to 40 GPa while it keeps ambient structure. High pressure Raman revealed that new modes appeared around 10 GPa and 20 GPa, respectively, which correspond to occurrence of superconductivity and to the change of T-C slop as the function of high pressure in conjunction with the evolutions of structural parameters at high pressures.
资助信息	NSF; MOST of China; EFree, an Energy Frontier Research Center - U.S. Department of Energy (DOE) [DE-SC0001057]; DOE-NNSA [DE-NA0001974]; DOE-BES [DE-FG02-99ER45775, DE-AC02-06CH11357]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59691]
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	Kong, PP,Sun, F,Xing, LY,et al. Superconductivity in Strong Spin Orbital Coupling Compound Sb2Se3[J]. SCIENTIFIC REPORTS,2014,4.
APA	Kong, PP.,Sun, F.,Xing, LY.,Zhu, J.,Zhang, SJ.,...&Jin, CQ.(2014).Superconductivity in Strong Spin Orbital Coupling Compound Sb2Se3.SCIENTIFIC REPORTS,4.
MLA	Kong, PP,et al."Superconductivity in Strong Spin Orbital Coupling Compound Sb2Se3".SCIENTIFIC REPORTS 4(2014).