Finite cluster approximation study of spin-1 ising model in transverse and crystal fields

被引:0
作者
Song, WJ
Yang, CZ
机构
[1] Department of Physics, Suzhou University
来源
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1996年 / 195卷 / 01期
关键词
D O I
10.1002/pssb.2221950128
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
A spin-1 Ising model with the presence of transverse and crystal fields (CTIM) is studied within the scheme of the finite cluster approximation (FCA). The phase diagrams and the other critical behaviour are numerically investigated for the honeycomb lattice. FCA yields results which are superior to those of the standard mean-field approximation (MFA).
引用
收藏
页码:261 / 266
页数:6
相关论文
共 16 条
[1]   PHASE-DIAGRAMS OF RANDOM ISING-MODELS - SIMPLE AND SYSTEMATIC SUCCESSIVE-APPROXIMATIONS [J].
BENYOUSSEF, A ;
BOCCARA, N .
JOURNAL DE PHYSIQUE, 1983, 44 (10) :1143-1147
[2]  
BENYOUSSEF A, 1985, J PHYS C SOLID STATE, V18, P1899
[3]   THE PHASE-TRANSITION OF THE SPIN-1/2 ISING-MODEL WITH A RANDOM FIELD [J].
BOBAK, A ;
KARABA, J ;
TOTH, L .
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 1989, 155 (02) :K143-K147
[4]   DILUTE ISING-MODELS - A SIMPLE THEORY [J].
BOCCARA, N .
PHYSICS LETTERS A, 1983, 94 (3-4) :185-187
[5]   BIDIMENSIONAL SPIN-1/2 ISING-MODEL IN A RANDOM FIELD [J].
BORGES, HE ;
SILVA, PR .
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1984, 121 (01) :K19-K24
[6]   COLLECTIVE MOTIONS OF HYDROGEN BONDS [J].
DEGENNES, PG .
SOLID STATE COMMUNICATIONS, 1963, 1 (06) :132-137
[7]   TRICRITICAL BEHAVIOR IN A BOND-DILUTE SPIN MODEL [J].
DICKINSON, H ;
YEOMANS, J .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1983, 16 (12) :L345-L351
[8]  
DROZ M, 1982, PHYS LETT A, V92, P2877
[9]   RANDOM TRANSVERSE FIELD ISING SPIN CHAINS [J].
FISHER, DS .
PHYSICAL REVIEW LETTERS, 1992, 69 (03) :534-537
[10]   MULTICRITICAL POINTS IN AN ISING RANDOM-FIELD MODEL [J].
KAUFMAN, M ;
KLUNZINGER, PE ;
KHURANA, A .
PHYSICAL REVIEW B, 1986, 34 (07) :4766-4770