期刊
SCIENTIFIC REPORTS
卷 3, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep02016
关键词
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资金
- NSF MOST of China
- EFree, an Energy Frontier Research Center
- U.S. Department of Energy (DOE) [DE-SC0001057]
- CIW
- CDAC
- UNLV
- LLNL through DOE-NNSA
- LLNL through DOE-BES
- LLNL through NSF
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1126249] Funding Source: National Science Foundation
- U.S. Department of Energy (DOE) [DE-SC0001057] Funding Source: U.S. Department of Energy (DOE)
Topological superconductivity is one of most fascinating properties of topological quantum matters that was theoretically proposed and can support Majorana Fermions at the edge state. Superconductivity was previously realized in a Cu-intercalated Bi2Se3 topological compound or a Bi2Te3 topological compound at high pressure. Here we report the discovery of superconductivity in the topological compound Sb2Te3 when pressure was applied. The crystal structure analysis results reveal that superconductivity at a low-pressure range occurs at the ambient phase. The Hall coefficient measurements indicate the change of p-type carriers at a low-pressure range within the ambient phase, into n-type at higher pressures, showing intimate relation to superconducting transition temperature. The first principle calculations based on experimental measurements of the crystal lattice show that Sb2Te3 retains its Dirac surface states within the low-pressure ambient phase where superconductivity was observed, which indicates a strong relationship between superconductivity and topology nature.
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