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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
Nohara, Minoru Department of Physics, Faculty of Science, Okayama University
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.
キーワード
superconductivity
IrTe2
Pt doping
triangular lattice
phase diagram
structural phase transition
発行日
2012-04-06
出版物タイトル
Journal of the Physical Society of Japan
81巻
5号
出版者
The Physical Society of Japan
開始ページ
053701-1
終了ページ
053701-4
ISSN
0031-9015
資料タイプ
学術雑誌論文
オフィシャル URL
http://jpsj.ipap.jp/link?JPSJ/81/053701/
言語
English
著作権者
©2012 The Physical Society of Japan
論文のバージョン
author
査読
有り
DOI
Web of Sience KeyUT