Pressure effects on superconductivity and structural parameters of ThFeAsN

doi:10.1209/0295-5075/123/67004

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	Pressure effects on superconductivity and structural parameters of ThFeAsN
	Guo, Jing; Shao, Yeting; Wang, Cao; Cai, Shu; Wang, Honghong; Wang, Zhe; Li, Xiaodong; Li, Yanchun; Cao, Guanghan; Wu, Qi
刊名	EPL
	2018
卷号	123 期号:6 页码:67004
ISSN号	0295-5075
DOI	10.1209/0295-5075/123/67004
文献子类	Article
英文摘要	Here we report effects of pressure on the recently discovered iron-based superconductor ThFeAsN, the first FeAs-based superconductor containing an actinide element, by in situ highpressure resistance and synchrotron X-ray diffraction measurements. Our results show that the superconducting transition temperature (T-C) decreases monotonously with increasing pressure and then vanishes at 25.4 CPa. The analysis of the As anion height above the Fe layer (h(Fe-As)), as well as the bond angle of As-Fe-As (alpha), for the pressurized ThFeAsN sample found that its T-C vs. h(Fe-As) or alpha follows the same universal curve describing most of the iron-based superconductors. The results indicate that the lattice parameters also control the superconductivity of the ThFeAsN superconductor, similar to other FeAs-based superconductors, as long as the "superconducting gene" is a FeAs layer. Furthermore, we demonstrate that the ambient-pressure ThFeAsN is an "intrinsic" superconductor, while its lattice structure is not in the optimal state of the FeAs-based superconductors. Copyright (C) EPLA, 2018
电子版国际标准刊号	1286-4854
WOS关键词	HIGH-TEMPERATURE SUPERCONDUCTIVITY ; CRITICAL-POINT ; PHASE-DIAGRAM ; IRON ; TRANSITION
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000448464500002
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286743]
专题	高能物理研究所_核技术应用研究中心高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Guo, Jing,Shao, Yeting,Wang, Cao,et al. Pressure effects on superconductivity and structural parameters of ThFeAsN[J]. EPL,2018,123(6):67004.
APA	Guo, Jing.,Shao, Yeting.,Wang, Cao.,Cai, Shu.,Wang, Honghong.,...&李延春.(2018).Pressure effects on superconductivity and structural parameters of ThFeAsN.EPL,123(6),67004.
MLA	Guo, Jing,et al."Pressure effects on superconductivity and structural parameters of ThFeAsN".EPL 123.6(2018):67004.