# Repulsive interaction helps superconductivity in fullerides

@article{Yamazaki2013RepulsiveIH,
title={Repulsive interaction helps superconductivity in fullerides},
author={Satoshi Yamazaki and Y. Kuramoto},
journal={Bulletin of the American Physical Society},
year={2013},
volume={2013}
}
• Published 1 November 2012
• Physics
• Bulletin of the American Physical Society
A repulsive interaction model of superconductivity (SC) is studied for tight-binding models with three-fold degenerate molecular orbitals. Taking a weak-coupling approach, we derive dimensionless coupling constants for various symmetries of SC pairs. In addition to anisotropic SC pairs, the s-wave ($$A_{g}$$) pairing can also be formed. With the purely repulsive interaction, however, the $$A_{g}$$ pair is not the most stable in both bcc and fcc lattices. The most stable SC pair for the bcc…
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