Geodesic
Superconductivity in two-band systems with a~small concentration of carriers
Teoretičeskaâ i matematičeskaâ fizika, Tome 109 (1996) no. 1, pp. 137-151

Voir la notice de l'article provenant de la source Math-Net.Ru

We consider a superconducter with two features characteristic for high temperature materials: small concentration of charge carriers and overlaping of energy strips on Fermy surface. For $T=0$ in the meanfield approximation the order parameters $\Delta_n$ and chemical potential $\mu$ for bose-condensation of local pairs ($\mu0$) are found. An equation for the energy $\varepsilon_b$ of the bound state as well as an equality $\varepsilon_b=2\mu$ are obtained. Applying the path integral method to two-zone model the transition from Fermy to Bose exitations in the presence of a two-particle bound state is described. An expression of the Bose condensation temperature and the contribution of a residual Bose interaction between the systems of different dimensions are found. 
@article{TMF_1996_109_1_a12,
     author = {M. E. Palistrant},
     title = {Superconductivity in two-band systems with a~small concentration of carriers},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {137--151},
     publisher = {mathdoc},
     volume = {109},
     number = {1},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1996_109_1_a12/}
}
TY  - JOUR
AU  - M. E. Palistrant
TI  - Superconductivity in two-band systems with a~small concentration of carriers
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1996
SP  - 137
EP  - 151
VL  - 109
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1996_109_1_a12/
LA  - ru
ID  - TMF_1996_109_1_a12
ER  - 
%0 Journal Article
%A M. E. Palistrant
%T Superconductivity in two-band systems with a~small concentration of carriers
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1996
%P 137-151
%V 109
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1996_109_1_a12/
%G ru
%F TMF_1996_109_1_a12
M. E. Palistrant. Superconductivity in two-band systems with a~small concentration of carriers. Teoretičeskaâ i matematičeskaâ fizika, Tome 109 (1996) no. 1, pp. 137-151. http://geodesic.mathdoc.fr/item/TMF_1996_109_1_a12/