Application of the path-integration method to the $s-d$ model of a metal with magnetic impurity

G. E. Gurgenishvili, G. A. Kharadze


Abstract: The thermodynamics of a metal with a magnetic impurity is formulated in terms of path integrals. The treatment is based on the contact $s-d$ model. An approximation in which only the static part of the pairing potentials is taken into account is used as an illustration.

Received: 24.05.1971

 English version: Theoretical and Mathematical Physics, 1972, 11:1, 370–375