2009年7月
Pairing Mechanism and Anisotropy of d-Vector of Spin-Triplet Superconductor Sr2RuO4
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
- ,
- 巻
- 78
- 号
- 7
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1143/JPSJ.78.074701
- 出版者・発行元
- PHYSICAL SOC JAPAN
The anisotropy of the d-vector of the spin-triplet superconductor Sr2RuO4 is investigated on the basis of a d-p model where the Coulomb interaction U-pp at the O site is taken into account together with U-dd at the Ru site. It is shown in the third-order perturbation for the pairing interaction that U-pp induces the spin-triplet pairing of (sin p(x) + i sin p(y)) symmetry. The piaring State with the d-vector in the RuO2 plane is stabilized by the atomic spin-orbit interaction and Hund's rule coupling at the Ru site, in contrast to the result based on the multiband Hubbard model without U-pp. This result is consistent with that obtained by the Knight shift measurement.
- リンク情報
- ID情報
-
- DOI : 10.1143/JPSJ.78.074701
- ISSN : 0031-9015
- Web of Science ID : WOS:000268119200028