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The Critical Temperature of the Axial Next‐Nearest‐Neighbour Ising Thin Film
Author(s) -
Duda A.
Publication year - 1988
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221500130
Subject(s) - ising model , condensed matter physics , nearest neighbour , phase transition , k nearest neighbors algorithm , perturbation (astronomy) , thin film , transition temperature , surface (topology) , materials science , statistical physics , physics , mathematics , quantum mechanics , nanotechnology , geometry , superconductivity , artificial intelligence , computer science
The critical temperature of the disordered to ordered phase transition is calculated for the axial next‐nearest‐neighbour Ising thin film within the molecular‐field approximation. The effects originated in the finite size of the sample and the surface perturbation of the exchange coupling are discussed. It is found that for appropriate values of the surface parameter, the critical temperature can exceed the value corresponding to the infinite, ideal crystal.