Microscopic theory of spin-triplet f-wave pairing in quasi-one-dimensional organic superconductors
Y. Tanaka, K. Kuroki
DOI 10.1103/PhysRevB.70.060502 · Physical Review B
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Abstract
We present a microscopic theory of fluctuation-mediated pairing mechanism in organic superconductors (TMTSF)2X, where the experimentally observed coexistence of 2kF charge fluctuation and 2kF spin fluctuation is naturally taken into account. We have studied, within the random phase approximation, the extended Hubbard model at quarter filling on a quasi-one-dimensional lattice, where we consider the off-site repulsive interaction up to third next-nearest neighbors along with the on-site repulsion. The results show that spin-triplet f-wave-like pairing can be realized in this system, dominating over singlet d-wave-like pairing, if 2kF spin and 2kF charge fluctuations coexist.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| (TMTSF)2PF6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| (TMTSF)2ClO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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