南方科技大学知识苑(SUSTech KC): Pressure-induced superconductivity in trigonal layered PtBi2 with triply degenerate point fermions

题名	Pressure-induced superconductivity in trigonal layered PtBi2 with triply degenerate point fermions
作者	Wang, Jing 1,2; Chen, Xuliang 1,3; Zhou, Yonghui 1,3; An, Chao 4,5; Zhou, Ying 4,5; Gu, Chuanchuan6 ; Tian, Mingliang 1,3; Yang, Zhaorong 1,3,4,5
通讯作者	Chen, Xuliang; Yang, Zhaorong
发表日期	2021-01-11
DOI	10.1103/PhysRevB.103.014507
发表期刊	PHYSICAL REVIEW B 影响因子和分区
ISSN	2469-9950
EISSN	2469-9969
卷号	103 期号:1
摘要	Materials with nonsaturating, extremely large magnetoresistance (XMR) attract continuous research interest due to their great potential in the fields of spintronics and magnetic sensors/switches. Here, we report the discovery of pressure-driven superconductivity (SC) in trigonal PtBi2, a semimetal material with nontrivial triply degenerate point fermions exhibiting a nonsaturating XMR effect, above a critical pressure of similar to 5-6 GPa. The superconducting transition onset temperature is similar to 2 K and displays a very weak pressure dependence across a broad pressure range of similar to 5-48 GPa. The lattice structure of trigonal PtBi2 is stable against pressure at least to 12.9 GPa. Around the same critical pressure where the SC emerges, the Hall coefficient varies violently and shows a sign crossover from low pressure positive (hole dominated) to high pressure negative (electron dominated), probably indicating a close relationship between them.
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	其他
资助项目	National Key Research and Development Program of China["2016YFA0401804","2018YFA0305704"] ; National Natural Science Foundation of China[11804344,"U19A2093","U1632275","U1932152",11874362,11704387,11804341,"U1832209"] ; Natural Science Foundation of Anhui Province["1808085MA06","1908085QA18","2008085QA40"] ; Users with Excellence Program of Hefei Center CAS[2020HSC-UE015] ; Collaborative Innovation Program of Hefei Science Center CAS[2020HSC-CIP014] ; High Magnetic Field Laboratory of Anhui Province[AHHM-FX-2020-02] ; Youth Innovation Promotion Association CAS[2020443] ; DOE Office of Science[DE-AC02-06CH11357]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000606721500007
出版者	AMER PHYSICAL SOC
EI入藏号	20210309778034
EI主题词	Pressure
EI分类号	Mechanics:931.1
ESI学科分类	PHYSICS
来源库	Web of Science
引用统计	被引频次[WOS]：11
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/221237
专题	工学院_材料科学与工程系
作者单位	1.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230026, Peoples R China 3.High Magnet Field Lab Anhui Prov, Hefei 230031, Peoples R China 4.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China 5.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China 6.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jing,Chen, Xuliang,Zhou, Yonghui,et al. Pressure-induced superconductivity in trigonal layered PtBi2 with triply degenerate point fermions[J]. PHYSICAL REVIEW B,2021,103(1).
APA	Wang, Jing.,Chen, Xuliang.,Zhou, Yonghui.,An, Chao.,Zhou, Ying.,...&Yang, Zhaorong.(2021).Pressure-induced superconductivity in trigonal layered PtBi2 with triply degenerate point fermions.PHYSICAL REVIEW B,103(1).
MLA	Wang, Jing,et al."Pressure-induced superconductivity in trigonal layered PtBi2 with triply degenerate point fermions".PHYSICAL REVIEW B 103.1(2021).