VARIATIONS OF T(C) FOR CHANGES IN THE SPIN-FLUCTUATION SPECTRAL WEIGHT

被引:25
作者
MONTHOUX, P [1 ]
SCALAPINO, DJ [1 ]
机构
[1] UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106
来源
PHYSICAL REVIEW B | 1994年 / 50卷 / 14期
关键词
D O I
10.1103/PhysRevB.50.10339
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We consider a two-dimensional Hubbard model within a conserving spin-fluctuation exchange approximation and determine the change in the d(x2-y2) superconducting transition temperature T(c) produced by variations in the spin-fluctuation spectral weight. We find that T(c) is increased when spectral weight is shifted to large momentum transfers and frequencies greater than T(c) with an optimal frequency for T(c) enhancement of order 10T(c).
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页码:10339 / 10341
页数:3
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