Thermal conductivity of EuB6

被引：8
|
作者：
Vonlanthen, P
Paschen, S [1 ]
Pushin, D
Bianchi, AD
Ott, HR
Sarrao, JL
Fisk, Z
机构：
[1] ETH Honggerberg, Festkorperphys Lab, CH-8093 Zurich, Switzerland
[2] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA
来源：
PHYSICAL REVIEW B | 2000年 / 62卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.62.3246
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The thermal conductivity lambda of EuB6 has been measured in the temperature range between 0.4 and 50 K. In this temperature regime the thermal conductivity is mainly due to phonons. A broad maximum with a relatively large absolute value of about 50 W/Km is observed at 17 K. Below this temperature the thermal conductivity follows a T-2 behavior, which may be attributed to phonon-electron scattering. At temperatures above 17 K a surprisingly weak T dependence of lambda is observed which we relate to the peculiar phonon dispersion relation of divalent hexaborides.
引用
收藏
页码：3246 / 3250
页数：5
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