PHONON SELF-ENERGY EFFECTS DUE TO SUPERCONDUCTIVITY - A REAL-AXIS FORMULATION

被引：62

作者：

MARSIGLIO, F ^{[1
]}

AKIS, R ^{[1
]}

CARBOTTE, JP ^{[1
]}

机构：

[1] MCMASTER UNIV,DEPT PHYS,HAMILTON L8S 4M1,ONTARIO,CANADA

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.45.9865

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The self-energy of q = 0 phonons is calculated in both the superconducting and normal states, with use of a real-axis formulation, valid for arbitrary temperature, impurity scattering rate, and electron-phonon coupling strength. The calculations are performed within the Eliashberg framework. We qualitatively confirm much of the previous work done using Pade approximants. Besides providing quantitative corrections, we also predict an observable effect with low-frequency phonons.

引用

页码：9865 / 9871

页数：7

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