Renormalization Group Technique Applied to the Pairing Interaction of the Quasi-One-Dimensional Superconductivity

Details Renormalization Group Technique Applied to the Pairing Interaction of the Quasi-One-Dimensional Superconductivity Renormalization Group Technique Applied to the Pairing Interaction of the Quasi-One-Dimensional Superconductivity

2004-10-26

arxiv.org/abs/cond-mat/0410659v1

J. Phys. Soc. Jpn., vol. 74, No.2 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

18 pages, 9 figures, submitted to J. Phys. Soc. Jpn

Scientific paper

10.1143/JPSJ.74.722

A mechanism of the quasi-one-dimensional (q1d) superconductivity is investigated by applying the renormalization group techniques to the pairing interaction. With the obtained renormalized pairing interaction, the transition temperature Tc and corresponding gap function are calculated by solving the linearized gap equation. For reasonable sets of parameters, Tc of p-wave triplet pairing is higher than that of d-wave singlet pairing due to the one-dimensionality of interaction. These results can qualitatively explain the superconducting properties of q1d organic conductor (TMTSF)2PF6 and the ladder compound Sr2Ca12Cu24O41.

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