NONSTATIONARY DYNAMICS IN A 2-DIMENSIONAL SPIN-GLASS

被引：9

作者：

SCHINS, AG

ARTS, AFM

DEWIJN, HW

LEYLEKIAN, L

VINCENT, E

PAULSEN, C

HAMMANN, J

机构：

[1] STATE UNIV UTRECHT,DEBYE RES INST,3508 TA UTRECHT,NETHERLANDS

[2] CENS,SERV PHYS SOLIDE,F-91191 GIF SUR YVETTE,FRANCE

来源：

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

关键词：

D O I：

10.1063/1.348090

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Aging is observed in the two-dimensional short-range Ising spin glass Rb2Cu0.78Co0.22F4 (T(c) = 0 K) by means of low-frequency ac susceptibility and zero-field-cooled (ZFC) magnetization measurements. Below the freezing temperature (approximately 3.5 K), slow logarithmic relaxations are found in both the in-phase and out-of-phase ac susceptibility, and a waiting time dependence is observed in the relaxation of the zero-field-cooled magnetization. No saturation of the relaxations was found. The results suggest that the again is governed by activated dynamics at length scales smaller than the equilibrium spin-glass correlation length.

引用

页码：5237 / 5239

页数：3

共 19 条

[1] AGING PROCESS AND RESPONSE FUNCTION IN SPIN-GLASSES - AN ANALYSIS OF THE THERMOREMANENT MAGNETIZATION DECAY IN AG-MN (2.6-PERCENT) [J].