TEMPERATURE-DEPENDENCE OF BARRIER HEIGHTS IN SPIN-GLASSES

被引：6

作者：

LEDERMAN, M ^{[1
]}

ORBACH, R ^{[1
]}

HAMMANN, J ^{[1
]}

OCIO, M ^{[1
]}

机构：

[1] CENS,DPHG SPSRM,F-91191 GIF SUR YVETTE,FRANCE

来源：

JOURNAL OF APPLIED PHYSICS | 1991年 / 69卷 / 08期

关键词：

D O I：

10.1063/1.348089

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

One of the characteristics of spin glasses (SG) below the glass temperature T(g) is aging. It is a direct consequence of the "rugged" and highly degenerate nature of the free-energy landscape in configuration space. We have determined the temperature dependence of the height of a given barrier DELTA (T) in the "canonical" spin glass AgMn2.6%. Our results show that the rate of change, \delta-DELTA/delta-T\, increases linearly with increasing DELTA in the range of DELTA we explore experimentally.

引用

页码：5234 / 5236

页数：3

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