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ID 48957
フルテキストURL
著者
Nishikubo, Yoshihiro Department of Physics, Okayama University
Nakano, Seiya Department of Physics, Okayama University
Kudo, Kazutaka Department of Physics, Okayama University
Nohara, Minoru Department of Physics, Okayama University
抄録
The effects of Ir doping on the thermoelectric properties of Pt1-xIrxSb2 (x = 0, 0.01, 0.03, and 0.1) with pyrite structure were studied. Measurements of electrical resistivity rho, Seebeck coefficient S, and thermal conductivity kappa were conducted. The results showed an abrupt change from semiconducting behavior without Ir (x = 0) to metallic behavior at x = 0.01. The sample with x = 0.01 exhibited large S and low rho, resulting in a maximum power factor (S-2/rho) of 43 mu W/cmK(2) at 400 K. The peculiar "pudding mold"-type electronic band dispersion could explain the enhanced thermoelectric properties in the metallic state.
発行日
2012-06-19
出版物タイトル
Applied Physics Letters
100巻
25号
出版者
American Institute of Physics.
開始ページ
252104-1
終了ページ
252104-3
ISSN
0003-6951
資料タイプ
学術雑誌論文
オフィシャル URL
http://dx.doi.org/10.1063/1.4729789
言語
English
OAI-PMH Set
岡山大学
著作権者
© 2012 American Institute of Physics.
論文のバージョン
publisher
査読
有り
DOI
Web of Sience KeyUT