Spin dynamics in a structurally ordered non-Fermi-liquid compound:: YbRh2Si2

被引：10

作者：

Ishida, K

MacLaughlin, DE ^{[1
]}

Bernal, OO

Heffner, RH

Nieuwenhuys, GJ

Trovarelli, O

Geibel, C

Steglich, F

机构：

[1] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA

[2] Osaka Univ, Grad Sch Engn Sci, Dept Phys Sci, Toyonaka, Osaka 5608531, Japan

[3] Calif State Univ Los Angeles, Dept Phys & Astron, Los Angeles, CA 90032 USA

[4] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[5] Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands

[6] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany

来源：

PHYSICA B-CONDENSED MATTER | 2003年 / 326卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

non-Fermi liquids; quantum criticality; heavy-fermion compounds; YbRh2Si2;

D O I：

10.1016/S0921-4526(02)01646-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Muon spin relaxation (muSR) experiments have been carried out at low temperatures in the non-Fermi-liquid heavy-fermion compound YbRh2Si2. The longitudinal-field muSR relaxation function is exponential, indicative that the dynamic spin fluctuations are homogeneous. The relaxation rate 1/T-1 varies with applied field as H-y, y = 1.0+/-0.1, which implies a scaling law of the form chi"(omega)proportional toomega(-y)f(omega/T), lim(x-->0)f(x) = x for the dynamic spin susceptibility. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：403 / 405

页数：3

共 11 条

[1] Non-Fermi-liquid behavior in U and Ce alloys: Criticality, disorder, dissipation, and Griffiths-McCoy singularities [J].