Quantum and classical glass transitions in LiHoxY1-xF4

被引：56

作者：

Ancona-Torres, C. ^{[1
,2
]}

Silevitch, D. M. ^{[1
,2
]}

Aeppli, G. ^{[3
,4
]}

Rosenbaum, T. F. ^{[1
,2
]}

机构：

[1] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

[2] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[3] UCL, London Ctr Nanotechnol, London WC1E 6BT, England

[4] UCL, Dept Phys & Astron, London WC1E 6BT, England

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.101.057201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

When performed in the proper low-field, low-frequency limits, measurements of the dynamics and the nonlinear susceptibility in the model Ising magnet in a transverse field LiHoxY1-xF4 prove the existence of a spin-glass transition for x=0.167 and 0.198. The classical behavior tracks for the two concentrations, but the behavior in the quantum regime at large transverse fields differs because of the competing effects of quantum entanglement and random fields.

引用

页数：4

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