Pairing Mechanism and Anisotropy of <I>d</I>-Vector of Spin-Triplet Superconductor Sr<SUB>2</SUB>RuO<SUB>4</SUB>
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- Yoshioka Yu
- Division of Materials Physics, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
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- Miyake Kazumasa
- Division of Materials Physics, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University
Bibliographic Information
- Other Title
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- Pairing mechanism and anisotropy of d-vector of spin-triplet superconductor Sr2RuO4
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Abstract
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 Upp at the O site is taken into account together with Udd at the Ru site. It is shown in the third-order perturbation for the pairing interaction that Upp induces the spin-triplet pairing of (sinpx+isinpy) 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 Upp. This result is consistent with that obtained by the Knight shift measurement.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 78 (7), 074701-074701, 2009
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282679173357952
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- NII Article ID
- 130005437492
- 10025962379
- 210000107879
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- NII Book ID
- AA00704814
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- BIBCODE
- 2009JPSJ...78g4701Y
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- ISSN
- 13474073
- 00319015
- http://id.crossref.org/issn/00319015
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- NDL BIB ID
- 10280648
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed