Screening of the B-1g Raman response in d-wave superconductors

被引：34

作者：

Manske, D ^{[1
]}

Rieck, CT ^{[1
]}

DasSharma, R ^{[1
]}

Bock, A ^{[1
]}

Fay, D ^{[1
]}

机构：

[1] UNIV HAMBURG, ZENTRUM MIKROSTRUKTURFORSCH, D-20355 HAMBURG, GERMANY

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.56.R2940

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have performed calculations of the response function for electronic Raman scattering in clean d-wave superconductors including vertex corrections in a conserving approximation and obtain contributions to the B-1g Raman response that we believe have not been considered previously. These contributions remove the well-known singularity at the threshold energy 2 Delta(0) for a d-wave superconductor, yielding instead a peak at a slightly higher frequency with an intensity of the same order as the A(1g), response. Our results are in good agreement with experimental data on YBa2Cu3O7.

引用

页码：R2940 / R2943

页数：4

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