J. Phys. Soc. Jpn. 75S (2006) pp. 250-252 |Previous Article| |Next Article| |Table of Contents|
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Proc. of 5th Int. Symposium on ASR-WYP-2005 – Advances in the Physics and Chemistry of Actinide Compounds –
Theory of Superconductivity in CeCoIn5 on the Basis of a Three-Dimensional Periodic Anderson Model
Kazunori Tanaka1,
Hiroaki Ikeda1,
Yunori Nisikawa2 and
Kosaku Yamada1
1Department of Science, Kyoto University, Kyoto 606-8502
2Department of Material Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585
The pairing symmetry for CeCoIn5 is controversial between dx2-y2 and dxy from the angle-dependent measurements of thermal conductivity and specific heat under the magnetic field, respectively. Therefore we investigate the gap structure of CeCoIn5, and identify it as dx2-y2 symmetry. In addition, we show that two opponent factors determine the pressure dependence of Tc: the momentum dependence of quasi-particle interaction, and the wave-function renormalization factor.
URL:
http://jpsj.ipap.jp/link?JPSJS/75S/250/
DOI: 10.1143/JPSJS.75S.250
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