Glassy spin dynamics in a stripe ordered cuprate system

被引：2
|
作者：
Curro, NJ [1 ]
机构：
[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
来源：
FLUCTUATIONS AND NOISE IN MATERIALS | 2004年
关键词：
NMR; stripes; cuprates;
D O I：
10.1117/12.537625
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The unusual glassy dynamics exhibited by the spin fluctuations in the stripe-ordered cuprates can be quantitatively measured by La nuclear magnetic resonance. We analyze the spin lattice relaxation data in the low temperature tetragonal structural phase of La1.8-x,Eu0.2SrxCuO4 and find that there is a distribution of local fluctuations times, with a Vogel-Fulcher temperature dependence. Furthermore, the data are consistent with a stretched exponential form for the dynamical spin correlation function, typical of glassy systems.
引用
收藏
页码：114 / 124
页数：11
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