FROM CLASSICAL TO QUANTUM GLASS

被引：185
|
作者：
WU, WH
ELLMAN, B
ROSENBAUM, TF
AEPPLI, G
REICH, DH
机构：
[1] UNIV CHICAGO,DEPT PHYS,CHICAGO,IL 60637
[2] AT&T BELL LABS,MURRAY HILL,NJ 07974
来源：
PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 15期
关键词：
D O I：
10.1103/PhysRevLett.67.2076
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the effects of a transverse magnetic field on the dynamics of the randomly diluted, dipolar coupled, Ising magnet LiHO0.167Y0.833F4. The transverse field mixes the eigenfunctions of the ground-state Ising doublet with the otherwise inaccessible excited-state levels. We observe a rapid decrease in the characteristic relaxation times, large changes in the spectral form of the relaxation, and a depression of the spin-glass transition temperature with the introduction of quantum fluctuations.
引用
收藏
页码：2076 / 2079
页数：4
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