TRI-CRITICAL BEHAVIOR OF THE BEG MODEL ON A DIAMOND LATTICE

Authors
KEROUAD M SABER M TUCKER JW
Citation
M. Kerouad et al., TRI-CRITICAL BEHAVIOR OF THE BEG MODEL ON A DIAMOND LATTICE, Journal of magnetism and magnetic materials, 146(1-2), 1995, pp. 47-54
Citations number
5
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
146
Issue
1-2
Year of publication
1995
Pages
47 - 54
Database
ISI
SICI code
0304-8853(1995)146:1-2<47:TBOTBM>2.0.ZU;2-6
Abstract
The critical behaviour of the Blume Emery Griffiths (BEG) spin 1 Ising model on a diamond lattice is studied within the framework of a finit e cluster theory. An expansion technique for the cluster identities th at allows the kinematic properties of the spin operators to be account ed for in a systematic way is employed. The location of the tri-critic al points in temperature versus single-ion anisotropy phase space is d etermined for a range of biquadratic exchange interaction strengths.