Superconductivity of the Weak Hopping Anderson Lattice with Generalized Electron Interactions
Duong Hai Trieu
Instytut Informatyki, Akademia Górniczo-Hutnicza, Al. A. Mickiewicza 30, 30-059 Kraków, Poland
Received: October 30, 1990; in final form: August 2, 1991
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We study the Anderson lattice with a weak hopping amplitude t and generalized electron interactions. The interactions between f electrons, between f and conduction electrons and between conduction electrons are taken into account. An effective Hamiltonian in a second order perturbation in t is derived. Using this Hamiltonian, we study superconductivity. Singlet d-like superconductivity may occur in presence of the above interactions. In some cases the interactions lead to suppressing superconductivity.
DOI: 10.12693/APhysPolA.80.601
PACS numbers: 74.20.-z