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Internal energy and short‐range order in ising models
Author(s) -
Silva P. R.,
Barreto F. C. SÁ
Publication year - 1982
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.2221140127
Subject(s) - ising model , statistical physics , internal energy , range (aeronautics) , energy (signal processing) , series (stratigraphy) , short range order , order (exchange) , physics , condensed matter physics , materials science , thermodynamics , quantum mechanics , geology , paleontology , finance , economics , composite material
The short‐range order contribution to the internal energy in Ising models is calculated in an effective type treatment. However, the method incorporates correlation effects through a phenomenological approach and the results obtained are an improvement over other effective field calculations when compared with exact ( z = 4) or series results ( z = 6).