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Title: Pressure-induced reemergence of superconductivity in topological insulator Sr 0.065 Bi 2 Se 3

Journal Article · · Physical Review B
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [1];  [3];  [3];  [3];  [3]
  1. Chinese Academy of Sciences and Univ. of Science and Technology of China, Hefei (China)
  2. Carnegie Inst. of Washington, Argonne, IL (United States)
  3. Chinese Academy of Sciences and Univ. of Science and Technology of China, Hefei (China); Collaborative Innovation Center of Advanced Microstructures, Nanjing (China)

The recently discovered SrxBi2Se3 superconductor provides an alternative and ideal material base for investigating possible topological superconductivity. Here, we report that in Sr0.065Bi2Se3, the ambient superconducting phase is gradually depressed upon the application of external pressure. At high pressure, a second superconducting phase emerges at above 6 GPa, with a maximum Tc value of ~8.3 K. Here, the joint investigations of the high-pressure synchrotron x-ray diffraction and electrical transport properties reveal that the reemergence of superconductivity in Sr0.065Bi2Se3 is closely related to the structural phase transition from an ambient rhombohedral phase to a high-pressure monoclinic phase around 6 GPa, and further to another high-pressure tetragonal phase above 25 GPa.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
AC02-06CH11357; NA0001974; FG02-99ER45775; U1532267; U1332143; 11574323
OSTI ID:
1252747
Alternate ID(s):
OSTI ID: 1249975
Journal Information:
Physical Review B, Vol. 93, Issue 14; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

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Cited By (8)

Pressure-induced superconductivity in MoP journal May 2018
Superconducting behavior of a new metal iridate compound, SrIr 2 , under pressure journal October 2019
Superconducting properties of (NH 3 ) y Li x FeSe 0.5 Te 0.5 under pressure journal November 2019
Zero Cu valence and superconductivity in high-quality C u x B i 2 S e 3 crystal journal November 2019
Effect of pressure on structural and electronic properties of the noncentrosymmetric superconductor R h 2 M o 3 N journal November 2019
Pressure dependence of superconductivity in low- and high- T c phases of ( NH 3 ) y Na x FeSe journal March 2018
Pressure-induced superconductivity in Ag x Bi 2 x Se 3 journal March 2018
Pressure-induced topological insulator-to-metal transition and superconductivity in Sn-doped B i 1.1 S b 0.9 T e 2 S journal May 2018

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