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TMF, 1996, Volume 109, Number 1, Pages 137–151 (Mi tmf1218)  

This article is cited in 6 scientific papers (total in 6 papers)

Superconductivity in two-band systems with a small concentration of carriers

M. E. Palistrant

Institute of Applied Physics Academy of Sciences of Moldova

Abstract: 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 ($\mu<0$) 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.

DOI: https://doi.org/10.4213/tmf1218

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English version:
Theoretical and Mathematical Physics, 1996, 109:1, 1352–1362

Bibliographic databases:

Received: 15.01.1996

Citation: M. E. Palistrant, “Superconductivity in two-band systems with a small concentration of carriers”, TMF, 109:1 (1996), 137–151; Theoret. and Math. Phys., 109:1 (1996), 1352–1362

Citation in format AMSBIB
\Bibitem{Pal96}
\by M.~E.~Palistrant
\paper Superconductivity in two-band systems with a~small concentration of carriers
\jour TMF
\yr 1996
\vol 109
\issue 1
\pages 137--151
\mathnet{http://mi.mathnet.ru/tmf1218}
\crossref{https://doi.org/10.4213/tmf1218}
\zmath{https://zbmath.org/?q=an:0938.82526}
\transl
\jour Theoret. and Math. Phys.
\yr 1996
\vol 109
\issue 1
\pages 1352--1362
\crossref{https://doi.org/10.1007/BF02069895}
\isi{http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&DestLinkType=FullRecord&DestApp=ALL_WOS&KeyUT=A1996XH02300013}


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    Citing articles on Google Scholar: Russian citations, English citations
    Related articles on Google Scholar: Russian articles, English articles

    This publication is cited in the following articles:
    1. M. G. Calalb, M. E. Palistrant, “Collective vibrations in superconductors with low carrier density and overlapping energy bands on the Fermi surface”, Theoret. and Math. Phys., 110:1 (1997), 129–140  mathnet  crossref  crossref  zmath  isi
    2. V. M. Loktev, V. M. Turkovsky, S. G. Sharapov, “Superconductivity in the Fröhlich two-dimensional model with an arbitrary carrier concentration”, Theoret. and Math. Phys., 115:3 (1998), 694–706  mathnet  crossref  crossref  zmath  isi
    3. Palistrant, ME, “Superconducting transition temperature and isotope exponent in superconductors with low Fermi energies”, Low Temperature Physics, 26:6 (2000), 407  crossref  adsnasa  isi  scopus  scopus  scopus
    4. Palistrant, ME, “Superconductivity in non-adiabatic systems with variable charge-carrier density”, Journal of Physics-Condensed Matter, 12:10 (2000), 2217  crossref  adsnasa  isi  scopus  scopus  scopus
    5. Palistrant, ME, “Superconductivity in two-band system with low carrier density”, International Journal of Modern Physics B, 19:6 (2005), 929  crossref  zmath  adsnasa  isi  scopus  scopus  scopus
    6. Palistrant, ME, “The theory of thermodynamic and magnetic properties of multi-band superconductors”, Condensed Matter Physics, 12:4 (2009), 677  crossref  isi  elib  scopus  scopus  scopus
  • Теоретическая и математическая физика Theoretical and Mathematical Physics
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