Geodesic
Application of the path-integration method to the $s-d$ model of a metal with magnetic impurity
Teoretičeskaâ i matematičeskaâ fizika, Tome 11 (1972) no. 1, pp. 93-101

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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. 
@article{TMF_1972_11_1_a9,
     author = {G. E. Gurgenishvili and G. A. Kharadze},
     title = {Application of the path-integration method to the $s-d$ model of a metal with magnetic impurity},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {93--101},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1972_11_1_a9/}
}
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G. E. Gurgenishvili; G. A. Kharadze. Application of the path-integration method to the $s-d$ model of a metal with magnetic impurity. Teoretičeskaâ i matematičeskaâ fizika, Tome 11 (1972) no. 1, pp. 93-101. http://geodesic.mathdoc.fr/item/TMF_1972_11_1_a9/