Sr2RuO4におけるスピン三重項超伝導性の評価
"Evaluation of Spin-Triplet Superconductivity in Sr2RuO4"というタイトルで、A. P. Mackenzie and Y. Maeno, Rev. Mod. Phys. 75, 657 (2003)の出版後から2011年秋までに公表されたSr2RuO4の実験・理論両面の結果を中心にreview論文を執筆しました。章立ては以下の通りです。
"Evaluation of Spin-Triplet Superconductivity in Sr2RuO4"
- 1. Spin-triplet superconductors
- 1.1 Candidates of Spin-triplet superconductors
- 1.2 Unconventional superconducting properties of Sr2RuO4
- 1.3 Scope of this review
- 2. Evidence for spin triplet pairing
- 2.1 Order parameter of spin-triplet superconductivity: the d-vector
- 2.2 Spin part of the order parameter
- 2.3 Chiral order parameter
- 2.4 Superconducting gap structure
- 2.5 d-vector state
- 3. Pairing by Coulomb repulsion
- 3.1 Microscopic pairing mechanisms based on Coulomb repulsion
- 3.2 Single-band Hubbard model
- 3.3 Extension to three-band model
- 3.4 Role of spin-orbit interaction and d-vector orientation
- 4. Challenges to the spin-triplet scenario
- 4.1 Suppression of the upper critical field
- 4.2 Superconducting multiphase
- 5. Novel superconducting phenomena
- 5.1 Superconductivity in eutectic systems
- 5.2 Sr2RuO4 as a topological superconductor
- 5.3 Half-quantum vortices
- 6. Establishing spin-triplet superconductivity
- Appendix: Two equivalent interpretations of the halfinteger quantum vortex
本論文はJournal of the Physical Society of Japan誌のSpecial Topics: "Recent Developments in Superconductivity"に掲載されました。
論文情報
Evaluation of Spin-Triplet Superconductivity in Sr2RuO4
(preprint: arXiv:1112.1620)
This paper is a review article in Special Topics of JPSJ. You can download it freely.