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Theory on Superconductivity of CeIn3 in Heavy Fermion System

Hirono Fukazawa·Kosaku Yamada
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Abstract

On the basis of a three-dimensional Hubbard model, the superconducting mechanism of CeIn3 under high pressure is investigated by the third-order perturbation theory with respect to the on-site Coulomb interaction U. Here we propose the d-wave pairing state induced by antiferromagnetic spin fluctuations. The estimated superconducting transition temperature is lower by one order than that in the two-dimensional system for the same value of U/W (W=bandwidth). This result is consistent with the difference between CeIn3 and CeRhIn5.

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Hirono Fukazawa, Kosaku Yamada. 2010-08-09. Theory on Superconductivity of CeIn3 in Heavy Fermion System. https://doi.org/10.1143/jpsj.72.2449

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