Superconductivity in the vicinity of antiferromagnetic order in CrAs

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	Superconductivity in the vicinity of antiferromagnetic order in CrAs
	Wu, W ; Cheng, JG ; Matsubayashi, K ; Kong, PP ; Lin, FK ; Jin, CQ ; Wang, NL ; Uwatoko, Y ; Luo, JL
刊名	NATURE COMMUNICATIONS
	2014
卷号	5
ISSN号	2041-1723
通讯作者	Cheng, JG (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	One of the common features of unconventional superconducting systems such as the heavy-fermion, high transition-temperature cuprate and iron-pnictide superconductors is that the superconductivity emerges in the vicinity of long-range antiferromagnetically ordered state. In addition to doping charge carriers, the application of external pressure is an effective and clean approach to induce unconventional superconductivity near a magnetic quantum critical point. Here we report on the discovery of superconductivity on the verge of antiferromagnetic order in CrAs via the application of external pressure. Bulk superconductivity with T-c approximate to 2 K emerges at the critical pressure P-c approximate to 8 kbar, where the first-order antiferromagnetic transition at T-N approximate to 265 K under ambient pressure is completely suppressed. The close proximity of superconductivity to an antiferromagnetic order suggests an unconventional pairing mechanism for CrAs. The present finding opens a new avenue for searching novel superconductors in the Cr and other transition metal-based systems.
资助信息	National Science Foundation of China [11025422, 11304371, 11220101003]; National Basic Research Program of China [2014CB921500, 2011CB921700]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB01020300, XDB07000000]; KAKENHI [23340101, 252460135]; Ministry of Education, Culture, Sports, Science and Technology [24740220]; JSPS [12F02023]
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/311004/59378]
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	Wu, W,Cheng, JG,Matsubayashi, K,et al. Superconductivity in the vicinity of antiferromagnetic order in CrAs[J]. NATURE COMMUNICATIONS,2014,5.
APA	Wu, W.,Cheng, JG.,Matsubayashi, K.,Kong, PP.,Lin, FK.,...&Luo, JL.(2014).Superconductivity in the vicinity of antiferromagnetic order in CrAs.NATURE COMMUNICATIONS,5.
MLA	Wu, W,et al."Superconductivity in the vicinity of antiferromagnetic order in CrAs".NATURE COMMUNICATIONS 5(2014).