Jun 2, 2020
Magnetotransport properties of tellurium under extreme conditions
Physical Review B
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- Volume
- 101
- Number
- 24
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1103/physrevb.101.245111
- Publisher
- American Physical Society (APS)
This study investigates the transport properties of a chiral elemental semiconductor tellurium (Te) under magnetic fields and pressure. Application of hydrostatic pressure reduces the resistivity of Te, while its temperature dependence remains semiconducting up to 4 GPa, contrary to recent theoretical and experimental studies. Application of higher pressure causes structural as well as semiconductor-metal transitions. The resulting metallic phase above 4 GPa exhibits superconductivity at 2 K along with a noticeable linear magnetoresistance effect. On the other hand, at ambient pressure, we identified metallic surface states on the as-cleaved (10 (1) over bar0) surfaces of Te. The nature of these metallic surface states has been systematically studied by analyzing quantum oscillations observed in high magnetic fields. We clarify that a well-defined metallic surface state exists not only on chemically etched samples that were previously reported, but also on as-cleaved ones.
- Link information
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- DOI
- https://doi.org/10.1103/physrevb.101.245111
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000537154900001&DestApp=WOS_CPL
- URL
- https://link.aps.org/article/10.1103/PhysRevB.101.245111
- URL
- http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.101.245111/fulltext
- ID information
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- DOI : 10.1103/physrevb.101.245111
- ISSN : 2469-9950
- eISSN : 2469-9969
- Web of Science ID : WOS:000537154900001