ID | 48985 |
フルテキストURL | |
著者 |
Pyon, Sunseng
Department of Physics, Faculty of Science, Okayama University
Kudo, Kazutaka
Department of Physics, Faculty of Science, Okayama University
ORCID
Kaken ID
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Nohara, Minoru
Department of Physics, Faculty of Science, Okayama University
ORCID
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抄録 | IrTe2, a layered compound with a triangular iridium lattice, exhibits a structural phase transition at approximately 250 K. This transition is characterized by the formation of Ir-Ir bonds along the b-axis. We found that the breaking of Ir-Ir bonds that occurs in Ir1-xPtxTe2 results in the appearance of a structural critical point in the T = 0 limit at x(c) similar or equal to 0.035. Although both IrTe2 and PtTe2 are paramagnetic metals, superconductivity at T-c = 3.1 K is induced by the bond breaking in a narrow range of x >= x(c) in Ir1-xPtxTe2. This result indicates that structural fluctuations can be involved in the emergence of superconductivity.
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キーワード | superconductivity
IrTe2
Pt doping
triangular lattice
phase diagram
structural phase transition
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発行日 | 2012-04-06
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出版物タイトル |
Journal of the Physical Society of Japan
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巻 | 81巻
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号 | 5号
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出版者 | The Physical Society of Japan
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開始ページ | 053701-1
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終了ページ | 053701-4
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ISSN | 0031-9015
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資料タイプ |
学術雑誌論文
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オフィシャル URL | http://jpsj.ipap.jp/link?JPSJ/81/053701/
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言語 |
英語
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著作権者 | ©2012 The Physical Society of Japan
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論文のバージョン | author
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査読 |
有り
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DOI | |
Web of Science KeyUT |