Dynamics of the random one-dimensional transverse Ising model

被引：34

作者：

Florencio, J ^{[1
]}

Barreto, FCS ^{[1
]}

机构：

[1] Univ Fed Minas Gerais, Dept Fis, BR-30161970 Belo Horizonte, MG, Brazil

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.60.9555

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the dynamics of the spin-1/2 random transverse Ising model in the high-temperature limit by means of the method of recurrence relations. We analyze two types of disorder: a disorder on the transverse field, and a disorder on the exchange coupling. We find that the dynamics undergoes a crossover from a central peak behavior onto a collective mode behavior as a function of the disorder. [S0163-1829(99)04937-1].

引用

页码：9555 / 9560

页数：6

共 50 条

[1] ISING SPIN-GLASS IN A TRANSVERSE MAGNETIC-FIELD [J].

BOECHAT, B ;

DOSSANTOS, R ;

CONTINENTINO, MA .

PHYSICAL REVIEW B, 1994, 49 (09) :6404-6407

[2] DYNAMICAL ASPECTS OF SPIN CHAINS AT INFINITE TEMPERATURE FOR DIFFERENT SPIN QUANTUM NUMBERS [J].

BOHM, M ;

LESCHKE, H .

PHYSICA A, 1993, 199 (01) :116-136

[3] SPIN-DIFFUSION IN THE ONE-DIMENSIONAL S = 1/2 XXZ MODEL AT INFINITE TEMPERATURE [J].

BOHM, M ;

VISWANATH, VS ;

STOLZE, J ;

MULLER, G .

PHYSICAL REVIEW B, 1994, 49 (22) :15669-15681

[4] DYNAMIC SPIN-PAIR CORRELATIONS IN A HEISENBERG CHAIN AT INFINITE TEMPERATURE BASED ON AN EXTENDED SHORT-TIME EXPANSION [J].

BOHM, M ;

LESCHKE, H .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1992, 25 (05) :1043-1053

[5]

BOUCHER JP, 1978, J PHYS LETT-PARIS, V39, pL86, DOI 10.1051/jphyslet:0197800390708600

[6] EXACT RESULTS FOR DYNAMICS OF ONE-DIMENSIONAL SPIN SYSTEMS [J].

BRANDT, U ;

JACOBY, K .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1976, 25 (02) :181-187

[7] AUTOCORRELATION FUNCTION OF X-COMPONENT OF MAGNETIZATION IN ONE-DIMENSIONAL XY-MODEL [J].

CAPEL, HW ;

PERK, JHH .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1977, 87 (02) :211-242

[8] SCALING THEORY FOR THE QUANTUM SPIN-GLASS TRANSITION [J].

CONTINENTINO, MA ;

BOECHAT, B ;

DOSSANTOS, RR .

PHYSICAL REVIEW B, 1994, 50 (18) :13528-13532

[9] Dynamic structure factor of the spin-1/2 transverse Ising chain [J].

Derzhko, O ;

Krokhmalskii, T .

PHYSICAL REVIEW B, 1997, 56 (18) :11659-11665

[10] STATISTICAL PROPERTIES OF RANDOM SPIN-1/2 XY CHAINS [J].

DERZHKO, O ;

KROKHMALSKII, T .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 140 :1623-1624

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