Mean-field renormalization-group approaches to the surface on a semi-infinite Ising model with a random surface field

1995 ◽  
Vol 51 (6) ◽  
pp. 3637-3639
Author(s):  
Gang Sun
1987 ◽  
Vol 9 (2) ◽  
pp. 123-131
Author(s):  
M. Droz ◽  
A. Maritan ◽  
A. L. Stella

1997 ◽  
Vol 11 (21n22) ◽  
pp. 973-979 ◽  
Author(s):  
A. S. de Arruda ◽  
W. Figueiredo

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.


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