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级数型T_c公式的进一步研究
A FURTURE RECEARCH OF THE SERIES STYLE T_c FORMULA
【摘要】 本文利用λ(n)的新的近似计算方法,求出了Eliashberg方程在T=Tc时的解,得到了下面的强耦合超导临界温度Tc的级数表示式:其中α1(μ)仅是μX的函数.新的Tc公式表明,Tc只依赖于电声耦合参数、库仑赝势μ和对于有效声子谱α2(ω)F(ω)的二次矩<ω2>.
【Abstract】 In this paper, We have used new approximate calculating method of the λ(m) and solved the Eliashberg eguation for T=Tc obtained a series exprasion for the strong coupling suDerconduCting critical temperature Where d1(μ) depend upon μ only, this new Tc formula shows that To is determined only by elecrtico tron-phonon coupling constant λ=2 α2 (ω) F (ω), coulomb pseudopotential μ and by the sguare moment <ω ̄2> of the endive phonon spectrum α ̄2<ω>F(ω).
- 【文献出处】 延边大学学报(自然科学版) ,JOURNAL OF YANBIAN UNIVERSITY (NATURAL SCIENCE EDITION) , 编辑部邮箱 ,1994年02期
- 【分类号】O151.2
- 【下载频次】18