Dynamical effects in quantum droplet model of Ising spin glass in a transverse field

被引：3

作者：

Busiello, G ^{[1
]}

Saburova, RV

Sushkova, VG

机构：

[1] Univ Salerno, Dipartimento Fis, I-84081 Baronissi, Italy

[2] INFM, I-84081 Salerno, Italy

[3] Kazan State Power Energy Univ, Kazan, Russia

来源：

SOLID STATE COMMUNICATIONS | 2001年 / 119卷 / 8-9期

关键词：

spin glasses; phase transition;

D O I：

10.1016/S0038-1098(01)00267-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The equilibrium behaviour of linear dynamical susceptibility is investigated in terms of quantum Ising spin glass droplet model. The imaginary part of linear ac susceptibility chi "(omega, T) as function of temperature T and frequency of external ac field to omega is analytically calculated on the basis of the linear dynamical response theory. It is found that such dependence of chi "(omega, T) shows a glassy behaviour. A qualitative agreement with experimental data, for example, in quantum dipole magnet LiHoxY1-xF4 and proton glass is found. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：545 / 548

页数：4

共 31 条

[1] ANOMALOUS LOW-TEMPERATURE THERMAL PROPERTIES OF GLASSES AND SPIN GLASSES [J].

ANDERSON, PW ;

HALPERIN, BI ;

VARMA, CM .

PHILOSOPHICAL MAGAZINE, 1972, 25 (01) :1-&

[2] Tunneling electric dipole defects in insulating glass [J].

Busiello, G ;

Saburova, R .

PHYSICA B, 1999, 263 :324-326

[3] Low temperature linear dynamical susceptibility of the Ising spin glass in a transverse field [J].

Busiello, G ;

Saburova, RV .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2000, 14 (18) :1843-1857

[4] On the nonlinear susceptibility of the quantum Ising spin glass model in a random field [J].

Busiello, G ;

Saburova, RV .

MODERN PHYSICS LETTERS B, 1996, 10 (26) :1295-1300

[5]

Chakrabarti A. D. B. K., 1996, QUANTUM ISING PHASES

[6] Dynamics of supercooled liquids and glasses: Comparison of experiments with theoretical predictions [J].

Cummins, HZ ;

Li, G ;

Hwang, YH ;

Shen, GQ ;

Du, WM ;

Hernandez, J ;

Tao, NJ .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1997, 103 (3-4) :501-519

[7] Static dielectric behavior of dipolar glasses [J].

dos Santos, JMBL ;

Santos, ML ;

Chaves, MR ;

Almeida, A ;

Klöpperpieper, A .

PHYSICAL REVIEW B, 2000, 61 (12) :8053-8061

[8]

ESQUINAZI P, 1998, TUNNELING SYSTEM AMO

[9] Phase transitions and singularities in random quantum systems [J].

Fisher, DS .

PHYSICA A, 1999, 263 (1-4) :222-233

[10] ACTIVATED DYNAMIC SCALING IN DISORDERED-SYSTEMS [J].

FISHER, DS .

JOURNAL OF APPLIED PHYSICS, 1987, 61 (08) :3672-3677

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