Spin-triplet f-wave-like pairing proposed for an organic superconductor (TMTSF)2PF6

Kazuhiko Kuroki; Ryotaro Arita; Hideo Aoki

doi:10.1103/PhysRevB.63.094509

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Spin-triplet f-wave-like pairing proposed for an organic superconductor (TMTSF)2PF6

Kazuhiko Kuroki, Ryotaro Arita, Hideo Aoki

DOI 10.1103/PhysRevB.63.094509 · Physical Review B

T1

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Abstract

By examining how the spin- and/or charge-fluctuation exchange can contribute to pairing instabilities, we propose that a spin-triplet f-wave-like pairing with a d-vector perpendicular to the b-axis may be realized in (TMTSF)2PF6 due to (i) a quasi-one-dimensional Fermi surface, (ii) a coexistence of 2kF charge fluctuations and spin fluctuations, and (iii) an anisotropy in spin fluctuations. Fluctuation-exchange study for the Hubbard model confirms the point (i), while a phenomenological analysis is given for (ii) and (iii). The proposed pairing is consistent with various experiments.

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
Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown