Numerical study of ageing in coupled two-level systems

被引：0
|
作者：
Grigera, TS [1 ]
Israeloff, NE [1 ]
机构：
[1] Northeastern Univ, Dept Phys, Boston, MA 02115 USA
来源：
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 2002年 / 82卷 / 03期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1080/13642810208221310
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study a lattice model of coupled two-level systems by Monte Carlo simulation. Bale find that it has glassy behaviour (not-exponential relaxation, Vogel-Fulcher relaxation times and ageing) at low temperatures. We study, in particular, ageing of the susceptibility in the frequency domain and find that it differs from spin-glass behaviour in that it does not obey omegat(w) scaling. Its qualitative features indicate that it may be a good model of ageing in structural glasses.
引用
收藏
页码：313 / 322
页数：10
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