Superconductivity emerging from a suppressed large magnetoresistant state in tungsten ditelluride

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	Superconductivity emerging from a suppressed large magnetoresistant state in tungsten ditelluride
	Kang, DF; Zhou, YZ; Yi, W; Yang, CL; Guo, J; Shi, YG; Zhang, S; Wang, Z; Zhang, C; Jiang, S
刊名	NATURE COMMUNICATIONS
	2015
卷号	6 页码:—
关键词	ELECTRICAL PROPERTIES WTE2
ISSN号	2041-1723
通讯作者	Sun, LL (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
英文摘要	The recent discovery of large magnetoresistance in tungsten ditelluride provides a unique playground to find new phenomena and significant perspective for potential applications. The large magnetoresistance effect originates from a perfect balance of hole and electron carriers, which is sensitive to external pressure. Here we report the suppression of the large magnetoresistance and emergence of superconductivity in pressurized tungsten ditelluride via high-pressure synchrotron X-ray diffraction, electrical resistance, magnetoresistance and alternating current magnetic susceptibility measurements. Upon increasing pressure, the positive large magnetoresistance effect is gradually suppressed and turned off at a critical pressure of 10.5 GPa, where superconductivity accordingly emerges. No structural phase transition is observed under the pressure investigated. In situ high-pressure Hall coefficient measurements at low temperatures demonstrate that elevating pressure decreases the population of hole carriers but increases that of the electron ones. Significantly, at the critical pressure, a sign change of the Hall coefficient is observed.
语种	英语
WOS记录号	WOS:000358860100006
公开日期	2016-03-08
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/25056]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Kang, DF,Zhou, YZ,Yi, W,et al. Superconductivity emerging from a suppressed large magnetoresistant state in tungsten ditelluride[J]. NATURE COMMUNICATIONS,2015,6:—.
APA	Kang, DF.,Zhou, YZ.,Yi, W.,Yang, CL.,Guo, J.,...&Zhao, ZX.(2015).Superconductivity emerging from a suppressed large magnetoresistant state in tungsten ditelluride.NATURE COMMUNICATIONS,6,—.
MLA	Kang, DF,et al."Superconductivity emerging from a suppressed large magnetoresistant state in tungsten ditelluride".NATURE COMMUNICATIONS 6(2015):—.