NONEXPONENTIAL RELAXATION OF DILUTED ANTIFERROMAGNETS

被引：16

作者：

NOWAK, U

USADEL, KD

机构：

[1] Theoretische Tieftemperaturphysik, Universität Duisburg, 4100 Duisburg 1

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 01期

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

D O I：

10.1103/PhysRevB.43.851

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on extensive Monte Carlo simulations of diluted Ising-type antiferromagnets in a uniform magnetic field in three dimensions. The analysis of the relaxation data of the domain state leads to a power-law decay of the remanent magnetization and internal energy. The corresponding exponents are proportional to the temperature. The power noise spectrum is investigated, showing roughly 1/f noise.

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页码：851 / 853

页数：3

相关论文

共 16 条

[1] SELF-ORGANIZED CRITICALITY - AN EXPLANATION OF 1/F NOISE [J].

BAK, P ;

TANG, C ;

WIESENFELD, K .

PHYSICAL REVIEW LETTERS, 1987, 59 (04) :381-384

[2] HYSTERESIS, METASTABILITY, AND TIME-DEPENDENCE IN D=2 AND D=3 RANDOM-FIELD ISING SYSTEMS [J].

BELANGER, DP ;

REZENDE, SM ;

KING, AR ;

JACCARINO, V .

JOURNAL OF APPLIED PHYSICS, 1985, 57 (08) :3294-3296

[3]

BINDER K, 1988, MONTE CARLO METHODS

[4] PHASE-TRANSITIONS IN DILUTED MAGNETS - CRITICAL-BEHAVIOR, PERCOLATION, AND RANDOM-FIELDS [J].

BIRGENEAU, RJ ;

COWLEY, RA ;

SHIRANE, G ;

YOSHIZAWA, H .

JOURNAL OF STATISTICAL PHYSICS, 1984, 34 (5-6) :817-848

[5] FORMATION OF DOMAINS IN THE RANDOM-FIELD ISING-MODEL [J].

CAMBIER, JL ;

NAUENBERG, M .

PHYSICAL REVIEW B, 1986, 34 (11) :7998-8003

[6] PHASE-TRANSITIONS AND METASTABLE STATES IN THE PRESENCE OF RANDOM-FIELDS [J].

COWLEY, RA ;

BIRGENEAU, RJ ;

SHIRANE, G .

PHYSICA A, 1986, 140 (1-2) :285-290

[7]

Domb C., 1988, PHASE TRANSITIONS CR

[8] FARADAY-ROTATION MEASUREMENTS OF TIME-DEPENDENT MAGNETIC PHENOMENA IN INSULATING SPIN-GLASSES [J].

FERRE, J ;

RAJCHENBACH, J ;

MALETTA, H .

JOURNAL OF APPLIED PHYSICS, 1981, 52 (03) :1697-1702

[9] RANDOM FIELD EFFECTS IN DISORDERED ANISOTROPIC ANTI-FERROMAGNETS [J].

FISHMAN, S ;

AHARONY, A .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1979, 12 (18) :L729-L733

[10] COMPARATIVE MONTE-CARLO AND MEAN-FIELD STUDIES OF RANDOM-FIELD ISING SYSTEMS [J].

GREST, GS ;

SOUKOULIS, CM ;

LEVIN, K .

PHYSICAL REVIEW B, 1986, 33 (11) :7659-7674