Heat transport in SrCu2(BO3)2 and CuGeO3

被引：15

作者：

Hofmann, M

Lorenz, T

Freimuth, A

Uhrig, GS

Kageyama, H

Ueda, Y

Dhalenne, G

Revcolevschi, A

机构：

[1] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany

[2] Univ Cologne, Inst Theoret Phys, D-50937 Cologne, Germany

[3] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba, Japan

[4] Univ Paris 11, Lab Physicochim Solides, F-91405 Orsay, France

来源：

PHYSICA B-CONDENSED MATTER | 2002年 / 312卷

关键词：

heat transport; low-dimensional quantum spin systems;

D O I：

10.1016/S0921-4526(01)01185-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In the low-dimensional spin systems SrCu2(BO3), and CuGeO3 the thermal conductivities along different crystal directions show pronounced double-peak structures and strongly depend on magnetic fields. For SrCu2(BO3)(2) the experimental data can be described by a purely phononic heat current and resonant scattering of phonons by magnetic excitations. A similar effect seems to be important in CuGeO3, too but, in addition, a magnetic contribution to the heat transport may be present. (C) 2002 Elsevier Science B.V. All rights reserved.

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收藏

页码：597 / 599

页数：3

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