Phase diagram of the semi-infinite Ising model in a random field

被引：12
作者：
DeArruda, AS [1 ]
Figueiredo, W [1 ]
机构：
[1] UNIV FED SANTA CATARINA,DEPT FIS,BR-88040900 FLORIANOPOLIS,SC,BRAZIL
来源：
MODERN PHYSICS LETTERS B | 1997年 / 11卷 / 21-22期
关键词：
D O I：
10.1142/S0217984997001183
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We determine the phase diagram of the semi-infinite Ising model in a cubic lattice with a trimodal distribution of random fields on the surface. We use the mean-field renormalization group with the smallest possible clusters to show that a very small dilution of the random field at surface is sufficient to destroy the tricritical behavior.
引用
收藏
页码：973 / 979
页数：7
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