DESCRIPTION OF ORDERING, TEMPERATURE-DEPENDENCE OF SUSCEPTIBILITY, AND MAGNETOSTRICTION OF A ONE-SUBLATTICE SPIN SYSTEM WITH S=1 AND STRONGBIQUADRATIC EXCHANGE

Authors
KALITA VM LOZENKO AF
Citation
Vm. Kalita et Af. Lozenko, DESCRIPTION OF ORDERING, TEMPERATURE-DEPENDENCE OF SUSCEPTIBILITY, AND MAGNETOSTRICTION OF A ONE-SUBLATTICE SPIN SYSTEM WITH S=1 AND STRONGBIQUADRATIC EXCHANGE, Low temperature physics (Woodbury, N.Y.), 24(10), 1998, pp. 721-725
Citations number
20
Categorie Soggetti
Physics, Applied
Journal title
Low temperature physics (Woodbury, N.Y.) → ACNP
ISSN journal
1063777X
Volume
24
Issue
10
Year of publication
1998
Pages
721 - 725
Database
ISI
SICI code
1063-777X(1998)24:10<721:DOOTOS>2.0.ZU;2-6
Abstract
The magnetic ordering model is considered for a single-lattice spin su bsystem with S = 1 and a large biquadratic exchange whose energy has t he same order of magnitude as the bilinear exchange interaction energy . The expression for free energy is obtained in the microscopic approx imation, and the phase states are defined and analyzed. The Landau pot ential is represented as a power expansion in the model microscopic fr ee energy. This expression is used to describe the peculiarities of th e temperature dependences of the magnetic susceptibility and magnetoel astic deformation. (C) 1998 American Institute of Physics. [S1063-777X (98)00510-6]