Thermal transport in granular metals

被引：25

作者：

Beloborodov, IS

Lopatin, AV

Hekking, FWJ

Fazio, R

Vinokur, VM

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[2] CNRS, Lab Phys & Modelisat Milieux Condenses, F-38042 Grenoble 9, France

[3] Univ Grenoble 1, F-38042 Grenoble 9, France

[4] NEST, INFM, I-56126 Pisa, Italy

[5] Scuola Normale Super Pisa, I-56126 Pisa, Italy

来源：

EUROPHYSICS LETTERS | 2005年 / 69卷 / 03期

关键词：

D O I：

10.1209/epl/i2004-10355-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the electron thermal transport in granular metals at large tunnel conductance between the grains, 9(T) much greater than 1, and not too low a temperature, T > 9(T)delta, where delta is the mean energy level spacing for a single grain. Taking into account the electron-electron interaction effects, we calculate the thermal conductivity and show that the Wiedemann-Franz law is violated for granular metals. We find that interaction effects suppress the thermal conductivity less than the electrical conductivity.

引用

页码：435 / 441

页数：7

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