PHASE-DIAGRAMS OF THE SPIN-1/2 TRANSVERSE ISING-MODEL WITH RANDOM INTERACTIONS

被引:4
作者
ELMIR, E [1 ]
SABER, M [1 ]
机构
[1] INST CURIE,PHYS & CHIM SECT,CURIE LAB,F-75231 PARIS 05,FRANCE
来源
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1994年 / 183卷 / 01期
关键词
D O I
10.1002/pssb.2221830120
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The phase diagrams of the spin-1/2 transverse Ising model with random interactions are investigated within the framework of the effective field theory using an improved configurational averaging procedure. General formulae, applicable to lattices with coordination number z, are given. Numerical results are presented for a simple cubic lattice. It is found that the effects of a transverse field on the phase diagrams exhibit a number of interesting phenomena.
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页码:251 / 258
页数:8
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