The rattler effect in thermoelectric clathrates studied by inelastic neutron scattering

被引：33

作者：

Christensen, Mogens

Juranyi, Fanni

Iversen, Bo B. ^{[1
]}

机构：

[1] Aarhus Univ, Dept Chem, DK-8000 Aarhus C, Denmark

[2] Univ Saarland, D-66123 Saarbrucken, Germany

[3] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

来源：

PHYSICA B-CONDENSED MATTER | 2006年 / 385卷

关键词：

thermoelectrics; host-guest systems; inelastic neutron scattering; clathrates;

D O I：

10.1016/j.physb.2006.05.232

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have studied the phonon density of states (PDOS) of thermoelectric type I clathrates using time-of-flight inelastic neutron scattering (INS). The open framework structure of clathrates contains rattling guest atoms, and this results in a remarkable low thermal conductivity. Powder samples of Sr8Ga16Ge30, n- and p-type Ba8Ga16Ge30, have been studied. (c) 2006 Elsevier B.V. All rights reserved.

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页码：505 / 507

页数：3

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