Orbital fluctuation-induced triplet superconductivity: Mechanism of superconductivity in Sr2RuO4
Tetsuya Takimoto
DOI 10.1103/PhysRevB.62.R14641 · Physical Review B
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Abstract
The mechanism of superconductivity in Sr2RuO4 is studied using a degenerate Hubbard model within the weak coupling theory. When the system approaches the orbital instability which is realized due to increasing the on-site Coulomb interaction between the electrons in the different orbitals, it is shown that the triplet superconductivity appears. This superconducting mechanism is only available in orbitally degenerate systems with multiple Fermi surfaces.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.5 | Pressure not reported | unknown |
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