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Phase Transitions in a Spin‐1/2 Ising Model of Alternating Magnetic Superlattice
Author(s) -
Saber A.,
Essaoudi I.,
Ainane A.,
Saber M.
Publication year - 1998
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/(sici)1521-3951(199809)209:1<161::aid-pssb161>3.0.co;2-#
Subject(s) - condensed matter physics , superlattice , ising model , physics , spin (aerodynamics) , phase (matter) , phase transition , materials science , quantum mechanics , thermodynamics
Within the framework of the effective field theory, we examine the phase transitions in a spin‐1/2 Ising model of an alternating magnetic superlattice. We calculate the critical temperature of the alternating superlattice as a function of the intralayer and interlayer exchange interactions and the film thickness. The effects of modified surface layers on the critical temperature are also considered.