Open AccessTHEORY OF THE CRITICAL TEMPERATURE FOR SUPERCONDUCTORS WITH SMALL λ (Ⅰ)
Author(s) -
Wu Hang-Sheng,
WENG ZHEN-YU
Publication year - 1984
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.33.975
Subject(s) - superconductivity , physics , einstein , condensed matter physics , spectrum (functional analysis) , high temperature superconductivity , phonon , critical current , mathematical physics , quantum mechanics
A formula of the critical temperature for superconductors with small λ is derived from the Eliashberg equation. The effective phonon spectrum is taken in the present paper as the Einstein spectrum. The values of Tc calculated from our formula are compared with the numerical solutions of the Eliashberg equation in the case of μ*= 0 and the agreement between them is fairly well in the region of λ<Λ.