Role of valence changes and nanoscale atomic displacements in BiS2-based superconductors

doi:10.1038/srep37394

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Role of valence changes and nanoscale atomic displacements in BiS2-based superconductors
	Cheng, J; Zhai, HF; Wang, Y; Xu, W; Liu, SL; Cao, GH; Cheng, J (reprint author), Nanjing Univ Posts & Telecommun, Coll Sci, Ctr Adv Funct Ceram, Nanjing 210023, Jiangsu, Peoples R China.
	2016
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	6 页码:-
文章类型	期刊论文
摘要	Superconductivity within layered crystal structures has attracted sustained interest among condensed matter community, primarily due to their exotic superconducting properties. EuBiS2F is a newly discovered member in the BiS2-based superconducting family, which shows superconductivity at 0.3 K without extrinsic doping. With 50 at.% Ce substitution for Eu, superconductivity is enhanced with Tc increased up to 2.2 K. However, the mechanisms for the Tc enhancement have not yet been elucidated. In this study, the Ce-doping effect on the self-electron-doped superconductor EuBiS2F was investigated by X-ray absorption spectroscopy (XAS). We have established a relationship between Ce-doping and the T-c enhancement in terms of Eu valence changes and nanoscale atomic displacements. The new finding sheds light on the interplay among superconductivity, charge and local structure in BiS2-based superconductors.
DOI	10.1038/srep37394
收录类别	SCI
语种	英语
WOS记录号	WOS:000388231400001
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/26617
专题	中科院上海应用物理研究所2011-2018年
通讯作者	Cheng, J (reprint author), Nanjing Univ Posts & Telecommun, Coll Sci, Ctr Adv Funct Ceram, Nanjing 210023, Jiangsu, Peoples R China.
推荐引用方式 GB/T 7714	Cheng, J,Zhai, HF,Wang, Y,et al. Role of valence changes and nanoscale atomic displacements in BiS2-based superconductors[J]. SCIENTIFIC REPORTS,2016,6:-.
APA	Cheng, J.,Zhai, HF.,Wang, Y.,Xu, W.,Liu, SL.,...&Cheng, J .(2016).Role of valence changes and nanoscale atomic displacements in BiS2-based superconductors.SCIENTIFIC REPORTS,6,-.
MLA	Cheng, J,et al."Role of valence changes and nanoscale atomic displacements in BiS2-based superconductors".SCIENTIFIC REPORTS 6(2016):-.

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