Structural phase transition and superconductivity hierarchy in 1T-TaS2 under pressure up to 100 GPa

doi:10.1038/s41535-021-00320-x

HFCAS OpenIR

	Structural phase transition and superconductivity hierarchy in 1T-TaS2 under pressure up to 100 GPa
	Dong, Qing 1; Li, Quanjun 1; Li, Shujia 1; Shi, Xuhan 1; Niu, Shifeng 1; Liu, Shijie 1; Liu, Ran 1; Liu, Bo1 ; Luo, Xuan2 ; Si, Jianguo 2,3; Lu, Wenjian2 ; Hao, Ning 4; Sun, Yuping2,4,5 ; Liu, Bingbing 1
	2021-03-02
发表期刊	NPJ QUANTUM MATERIALS
通讯作者	Li, Quanjun(liquanjun@jlu.edu.cn) ; Sun, Yuping(ypsun@issp.ac.cn) ; Liu, Bingbing(liubb@jlu.edu.cn)
摘要	The adoption of high pressure not only reinforces the comprehension of the structure and exotic electronic states of transition metal dichalcogenides (TMDs) but also promotes the discovery of intriguing phenomena. Here, 1T-TaS2 was investigated up to 100 GPa, and re-enhanced superconductivity was found with structural phase transitions. The discovered I4/mmm TaS2 presents strong electron-phonon coupling, revealing a good superconductivity of the nonlayered structure. The P-T phase diagram shows a dome shape centered at similar to 20 GPa, which is attributed to the distortion of the 1T structure. Accompanied by the transition to nonlayered structure above 44.5 GPa, the superconducting critical temperature shows an increasing trend and reaches similar to 7 K at the highest studied pressure, presenting superior superconductivity compared to the original layered structure. It is unexpected that the pressure-induced re-enhanced superconductivity was observed in TMDs, and the transition from a superconductor with complicated electron-pairing mechanism to a phonon-mediated superconductor would expand the field of pressure-modified superconductivity.
DOI	10.1038/s41535-021-00320-x
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2018YFA0305900] ; National Key R&D Program of China[2016YFA0300404] ; NSFC[11874172] ; NSFC[11374120] ; NSFC[11634004] ; NSFC[51320105007] ; NSFC[11674326] ; NSFC[11874357] ; NSFC[U2032215] ; NSFC[U1932217] ; NSFC[U1832141] ; JLU Science and Technology Innovative Research Team[2017TD-01]
项目资助者	National Key R&D Program of China ; NSFC ; JLU Science and Technology Innovative Research Team
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Quantum Science & Technology ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000626057200002
出版者	NATURE RESEARCH
引用统计	被引频次：29[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/121099
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Quanjun; Sun, Yuping; Liu, Bingbing
作者单位	1.Jilin Univ, State Key Lab Superhard Mat, Changchun, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei, Peoples R China 3.Univ Sci & Technol China, Hefei, Peoples R China 4.Chinese Acad Sci, High Field Magnet Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei, Peoples R China 5.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing, Peoples R China
通讯作者单位	中科院强磁场科学中心
推荐引用方式 GB/T 7714	Dong, Qing,Li, Quanjun,Li, Shujia,et al. Structural phase transition and superconductivity hierarchy in 1T-TaS2 under pressure up to 100 GPa[J]. NPJ QUANTUM MATERIALS,2021,6.
APA	Dong, Qing.,Li, Quanjun.,Li, Shujia.,Shi, Xuhan.,Niu, Shifeng.,...&Liu, Bingbing.(2021).Structural phase transition and superconductivity hierarchy in 1T-TaS2 under pressure up to 100 GPa.NPJ QUANTUM MATERIALS,6.
MLA	Dong, Qing,et al."Structural phase transition and superconductivity hierarchy in 1T-TaS2 under pressure up to 100 GPa".NPJ QUANTUM MATERIALS 6(2021).