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A New Type of Bond‐Dilution Problem in a Ferromagnetic Insulator with a Fractional Random Coordination Number
Author(s) -
Sarmento E. F.,
da Cruz H. R.,
Kaneyoshi T.
Publication year - 1989
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.2221510228
Subject(s) - ferromagnetism , condensed matter physics , ising model , coordination number , transverse field , phase diagram , transverse plane , dilution , phase transition , physics , materials science , statistical physics , mathematics , phase (matter) , quantum mechanics , thermodynamics , engineering , structural engineering , ion
The ferromagnetic phase stability limits (or phase diagrams) of a quenched bond‐diluted spin‐ ½ transverse Ising ferromagnetic insulator with a fractional random coordination number are studied within the framework of the effective‐field theory with correlations. The changes of transition temperature and critical concentration with the topology of the network (or the averaged connectivity) are examined in the zero transverse field. The results obtained are compared with those available in the literature. The influences of transverse field on the critical frontiers are also obtained.