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Phase Diagram and Magnetization Moments of the Spin‐5/2 Diluted Ising Ferromagnet in a Transverse Field
Author(s) -
Saber M.,
Tucker J. W.
Publication year - 1995
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.2221890126
Subject(s) - van der waerden's theorem , condensed matter physics , magnetization , ising model , phase diagram , physics , ferromagnetism , transverse plane , field (mathematics) , spin (aerodynamics) , phase (matter) , magnetic field , quantum mechanics , thermodynamics , mathematics , structural engineering , combinatorics , pure mathematics , engineering
The phase diagram and the magnetization moments of the spin‐5/2 diluted Ising ferromagnet in a transverse field is studied by an effective field method within a single‐site cluster theory. The effective field equations are derived using a probability distribution obtained with the aid of generalized van der Waerden identities that account for the single‐site spin kinematic relations. Correlations between the site disorder and the local configurational‐dependent thermal averages of the spin variable are included. The dependence of the transition temperature for longitudinal ordering is studied both as a function of the transverse field strength and the site dilution. Selected results for the thermal dependence of the longitudinal and transverse components of the magnetization and their higher moments are also presented.