Resistivity saturation revisited: Results from a dynamical mean field theory

被引：51

作者：

Millis, AJ ^{[1
]}

Hu, J

Das Sarma, S

机构：

[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.82.2354

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use the dynamical mean field method to study the high-temperature resistivity of electrons strongly coupled to phonons. The results reproduce the qualitative behavior of the temperature and disorder dependence of the resistivity of "A-15" materials which is normally described in terms of saturation, but imply that the resistivity does not saturate. Rather, a change in temperature dependence occurs when the scattering becomes strong enough to cause a breakdown of the Migdal approximation.

引用

页码：2354 / 2357

页数：4

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