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This article is cited in 54 scientific papers (total in 54 papers)
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Transition temperature of strong-coupling superconductors
O. V. Dolgov, E. G. Maksimov P. N. Lebedev Physical Institute, the USSR Academy of Sciences, Moscow
Abstract:
The possible existence of superconductors with high transition temperatures is analyzed for both the ordinary electron-phonon interaction and nonphonon superconductivity mechanisms. The existence of such systems depends on a negative static dielectric permittivity. The possible occurrence of this situation for an electron-ion system is analyzed. It is shown that negative values of the static dielectric permittivity are possible in the case of strong local-field effects, i. e., in the case of exchange-correlation interactions in the electron subsystem or the localization of point ions for an electron-phonon system. Equations for the transition temperature of strong-coupling superconductors are analyzed. Restrictions imposed on the transition temperature by the equations themselves and by the conditions for stability of the material are examined.
Citation:
O. V. Dolgov, E. G. Maksimov, “Transition temperature of strong-coupling superconductors”, UFN, 138:1 (1982), 95–128; Phys. Usp., 25:9 (1982), 688–704
Linking options:
https://www.mathnet.ru/eng/ufn8871 https://www.mathnet.ru/eng/ufn/v138/i1/p95
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Abstract page: | 36 | Full-text PDF : | 10 |
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