Open AccessINFLUENCE OF EFFECTIVE PHONON SPECTRUM α<sup>2</sup>F(ω) ON T<sub>c</sub> OF SUPERCONDUCTORS
Author(s) -
Hongcheng Li
Publication year - 1979
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.28.104
Subject(s) - physics , phonon , spectrum (functional analysis) , superconductivity , position (finance) , condensed matter physics , limit (mathematics) , atomic physics , quantum mechanics , mathematics , mathematical analysis , finance , economics
Results of some 3500 numerical solutions of Tc for 64 different effective phonon spectrum a2F(ω) are presented. It can be seen from these results that the Tc has the conditional maximum (Tc/A)max, if the area of spectrum is unchanged. Tc depends chiefly on the position and area of the peak of spectrum. Its dependence on the peak width is comparatively unimportant. If the double δ spectrum is replaced by the double ω spectrum with same and 2>, the rms error is 3.2%. In this paper I analysis and settle the dispute regarding the "λ=2 limit" in the literature.