Thermal transport in the hidden-order state of URu2Si2 -: art. no. 156405

被引：86

作者：

Behnia, K

Bel, R

Kasahara, Y

Nakajima, Y

Jin, H

Aubin, H

Izawa, K

Matsuda, Y

Flouquet, J

Haga, Y

Onuki, Y

Lejay, P

机构：

[1] Ecole Super Phys & Chim Ind Ville Paris, CNRS, Phys Quant Lab, F-75231 Paris, France

[2] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

[3] Kyoto Univ, Dept Phys, Kyoto 6088502, Japan

[4] CEA, DRFM SPSMS, F-38042 Grenoble, France

[5] Japanese Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[6] CNRS, Ctr Rech Tres Basses Temp, F-38042 Grenoble, France

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.94.156405

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a study of thermal conductivity in the normal state of the heavy-fermion superconductor URu2Si2. Ordering at 18 K leads to a steep increase in thermal conductivity and (in contrast with all other cases of magnetic ordering in heavy-fermion compounds) to an enhancement of the Lorenz number. By linking this observation to several other previously reported features, we conclude that most of the carriers disappear in the ordered state and this leads to a drastic increase in both the phononic and electronic mean free path.

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页数：4

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