Thermal conductivity of superconducting MgB2

被引：69

作者：

Bauer, E ^{[1
]}

Paul, C

Berger, S

Majumdar, S

Michor, H

Giovannini, M

Saccone, A

Bianconi, A

机构：

[1] Vienna Univ Technol, Inst Phys Expt, A-1040 Vienna, Austria

[2] Univ Genoa, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy

[3] Univ Roma La Sapienza, Unita INFM, I-00185 Rome, Italy

[4] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2001年 / 13卷 / 22期

关键词：

Bardeen-Rickayzen-Tewordt theory - Lattice contribution - Normal state region;

D O I：

10.1088/0953-8984/13/22/107

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Thermal conductivity of superconducting MgB2 was studied in both the superconducting and the normal state region. The latter is almost equally determined by the electronic and the lattice contribution to the total thermal conductivity. In the superconducting state, however, the lattice contribution is larger. The electronic thermal conductivity below T-c was derived from the experimental data considering the Bardeen-Rickayzen-Tewordt theory together with the model of Geilikman. The analysis shows that electron scattering on static imperfections dominates.

引用

页码：L487 / L493

页数：7

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