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Phase Diagrams of the Semi‐Infinite Spin‐1/2 Ising Model and Spin‐1/2 Ising Film in a Random Transverse Surface Field
Author(s) -
Laaboudi B.,
Saber M.,
Kerouad M.
Publication year - 1999
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(199903)212:1<153::aid-pssb153>3.0.co;2-4
Subject(s) - ising model , condensed matter physics , phase diagram , spin (aerodynamics) , transverse plane , square lattice ising model , random field , transverse field , field (mathematics) , physics , surface (topology) , materials science , phase (matter) , mathematics , quantum mechanics , thermodynamics , geometry , statistics , engineering , structural engineering , pure mathematics
The critical behavior of both semi‐infinite spin‐1/2 Ising system and spin‐1/2 Ising film in a random transverse surface field has been studied within an effective field theory. The effect of the ratio R of the surface exchange interaction to the bulk one, random transverse surface field and film thickness on the phase diagrams are investigated.