Heavy fermion d-wave superconductivity: a X-boson approach

Abstract

From an extension of the periodic Anderson model (PAM) in the $U=\infty$ 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.

Submitted to the Proceeding of the ICM 2003-Rome. Requires elsart3.cls

References in corpus (3)

• X-boson cumulant approach to the periodic Anderson model
• Thermodynamic potential of the Periodic Anderson Model with the X-boson method: Chain Approximation
• Superconductor-insulator transition induced by pressure within the X-boson approach

Cited by in corpus (1)

• Study of the Kondo and high-temperature limits of the slave-boson and X-boson methods