Phase diagram of a random-anisotropy mixed-spin Ising model

被引：19
|
作者：
Vieira, AP [1 ]
de Carvalho, JX [1 ]
Salinas, SR [1 ]
机构：
[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
来源：
PHYSICAL REVIEW B | 2001年 / 63卷 / 18期
关键词：
D O I：
10.1103/PhysRevB.63.184415
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigate the phase diagram of a mixed spin-1/2-spin-1 Ising system in the presence of quenched disordered anisotropy. We carry out a mean-field and a standard self-consistent Bethe-Peierls calculation. Depending on the amount of disorder, there appear additional transition lines and multicritical points. Also, we report some connections with a percolation problem and an exact result in one dimension.
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页数：7
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