DYNAMIC SCALING IN CD1-XMNXTE SPIN-GLASSES - A PROBE OF THE SPIN AUTOCORRELATION FUNCTION

被引：7

作者：

LECLERCQ, B ^{[1
]}

RIGAUX, C ^{[1
]}

机构：

[1] UNIV PARIS 06,PHYS SOLIDES GRP,F-75251 PARIS 05,FRANCE

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.48.13573

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dynamic scaling relations for the frequency-dependent magnetic susceptibility are derived, using the spin autocorrelation function q(t) is-proportional-to t(-a) exp[-(t/tau)b], which successfully describes results from Monte Carlo simulations on a three-dimensional Ising spin-glass model. This functional form accounts very well for the observed frequency and temperature dependences of the imaginary component of the ac magnetic susceptibility in Cd1-xMnxTe, above the spin-glass transition temperature T(c). The parameters a and b obtained from the scaling analysis are very comparable to those found for Fe0.5Mn0.5TiO3, close to T(c), emphasizing the similar critical behavior of short-range insulating spin glasses, of Heisenberg and Ising type.

引用

页码：13573 / 13578

页数：6

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