The effect of Cr impurity to superconductivity in electron-doped BaFe2-xNixAs2

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	The effect of Cr impurity to superconductivity in electron-doped BaFe2-xNixAs2
	Zhang, R ; Gong, DL ; Lu, XY ; Li, SL ; Dai, PC ; Luo, HQ
刊名	SUPERCONDUCTOR SCIENCE & TECHNOLOGY
	2014
卷号	27 期号:11
关键词	iron-based superconductor impurity transport properties phase diagram
ISSN号	0953-2048
通讯作者	Zhang, R (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	We use transport and magnetization measurements to study the effect of Cr-doping to the phase diagram of the electron-doped superconducting BaFe2-xNixAs2 iron pnictides. In principle, adding Cr to electron-doped BaFe2-xNixAs2 should be equivalent to the effect of hole-doping. However, we find that Cr doping suppresses superconductivity via impurity effect, while not affecting the normal state resistivity above 100 K. We establish the phase diagram of Cr-doped BaFe2-x-yNixCryAs2 iron pnictides, and demonstrate that Cr-doping near optimal superconductivity restore the long-range antiferromagnetic order suppressed by superconductivity.
资助信息	National Science Foundation of China [11374011]; Ministry of Science and Technology of China (973 projects) [2011CBA00110, 2012CB821400]; Chinese Academy of Sciences [XDB07020300]; NSF [DMR-1362219]; Robert A. Welch Foundation [C-1839]
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/311004/59757]
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, R,Gong, DL,Lu, XY,et al. The effect of Cr impurity to superconductivity in electron-doped BaFe2-xNixAs2[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY,2014,27(11).
APA	Zhang, R,Gong, DL,Lu, XY,Li, SL,Dai, PC,&Luo, HQ.(2014).The effect of Cr impurity to superconductivity in electron-doped BaFe2-xNixAs2.SUPERCONDUCTOR SCIENCE & TECHNOLOGY,27(11).
MLA	Zhang, R,et al."The effect of Cr impurity to superconductivity in electron-doped BaFe2-xNixAs2".SUPERCONDUCTOR SCIENCE & TECHNOLOGY 27.11(2014).