Memory of pressure-induced superconductivity in a phase-change alloy

doi:10.1103/PhysRevB.103.174515

	Memory of pressure-induced superconductivity in a phase-change alloy
	Huang, Ge 2,6,7; Cao, Zi-Yu 2; Wei, Tian-Ran 3; Goncharov, Alexander F.5; Glazyrin, Konstantin 4; Yu, Hao 1,2; Shi, Xun 3; Chen, Li-Dong 3; Chen, Xiao-Jia 1,2
刊名	PHYSICAL REVIEW B
	2021-05-24
卷号	103
ISSN号	2469-9950
DOI	10.1103/PhysRevB.103.174515
通讯作者	Chen, Xiao-Jia(xjchen@hpstar.ac.cn)
英文摘要	The application of pressure has been speculated to boost the search for high-temperature superconductors, especially in superhydrides. However, the applied pressure as high as hundreds of GPa needed to create superconductivity in those materials limits their technological application. Finding a route to achieve the high-temperature superconductivity at near-ambient conditions is attractive. By choosing a phase-change alloy Ge2Sb2Te5, we study the phase evolution of this material with pressure from the trigonal phase through the amorphous to the body-centered cubic one by the measurements of x-ray diffraction, Raman scattering, resistivity, and Hall coefficient. Superconductivity is observed to take place in the last two phases and can maintain at nearly ambient pressure in the decompression run. Pressure-induced disorder is found to be the key for holding superconductivity in the compressed phase-change alloy.
资助项目	National Key R&D Program of China at HPSTAR[2018YFA0305900] ; Basic Research Program of Shenzhen at HIT[JCYJ20200109112810241]
WOS关键词	X-RAY-DIFFRACTION ; ELECTRON-DIFFRACTION ; THIN-FILMS ; TEMPERATURE ; GE2SB2TE5 ; HYDRIDE ; LANTHANUM ; DESIGN ; KELVIN
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000655892200006
资助机构	National Key R&D Program of China at HPSTAR ; Basic Research Program of Shenzhen at HIT
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123641]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Xiao-Jia
作者单位	1.Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China 2.Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 4.DESY, Photon Sci, Notkestr 85, DE-22607 Hamburg, Germany 5.Carnegie Inst Sci, Earth & Planets Lab, Washington, DC 20015 USA 6.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 7.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Huang, Ge,Cao, Zi-Yu,Wei, Tian-Ran,et al. Memory of pressure-induced superconductivity in a phase-change alloy[J]. PHYSICAL REVIEW B,2021,103.
APA	Huang, Ge.,Cao, Zi-Yu.,Wei, Tian-Ran.,Goncharov, Alexander F..,Glazyrin, Konstantin.,...&Chen, Xiao-Jia.(2021).Memory of pressure-induced superconductivity in a phase-change alloy.PHYSICAL REVIEW B,103.
MLA	Huang, Ge,et al."Memory of pressure-induced superconductivity in a phase-change alloy".PHYSICAL REVIEW B 103(2021).