The superconductivity mediated by antiferromagnetic spin-fluctuations (AFSF) is studied in the quasi-one-dimensional Hubbard model. The superconducting transition temperature and the momentum dependence of the order parameter are calculated numerically. An effect of the long-range (≫the lattice constant) AFSF is examined. The obtained phase diagram is compared with that of the organic superconductors (TMTSF) 2 X and (DMET) 2 X, and some qualitative agreements between the theory and experiments are obtained.
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Hiroshi Shimahara (1989) studied this question.
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