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ID 59908
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Author
Akiba, Kazuto Graduate School of Natural Science and Technology, Okayama University
Kobayashi, Kaya Research Institute for Interdisciplinary Science, Okayama University ORCID Kaken ID publons researchmap
Kobayashi, Tatsuo C. Graduate School of Natural Science and Technology, Okayama University ORCID Kaken ID publons researchmap
Koezuka, Ryo The Institute for Solid State Physics, The University of Tokyo
Miyake, Atsushi The Institute for Solid State Physics, The University of Tokyo
Gouchi, Jun The Institute for Solid State Physics, The University of Tokyo
Uwatoko, Yoshiya The Institute for Solid State Physics, The University of Tokyo
Tokunaga, Masashi The Institute for Solid State Physics, The University of Tokyo
Abstract
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¯10) 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.
Published Date
2020-06-02
Publication Title
Physical Review B
Volume
volume101
Issue
issue24
Publisher
American Physical Society
Start Page
245111
ISSN
2469-9950
NCID
AA11187113
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
Copyright Holders
©2020 American Physical Society
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publisher
DOI
Web of Science KeyUT
Related Url
isVersionOf https://doi.org/10.1103/PhysRevB.101.245111
Funder Name
Ministry of Education, Culture, Sports, Science and Technology
助成番号
19K14660
19H01850
19H01852