Heavy fermion d-wave superconductivity: a X-boson approach
Abstract
From an extension of the periodic Anderson model (PAM) in the U=∞ limit taking into account the effect of a nearest neighbor attractive interaction between f -electrons, we compare the obtained superconducting phase diagram of a two dimensional d-wave superconductor with the results obtained for an isotropic s-wave superconductor employing the X-boson method.
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