On the existence of compensation temperature in 2d mixed-spin Ising ferrimagnets: an exactly solvable model

Authors
Dakhama, A Benayad, N
Citation
A. Dakhama et N. Benayad, On the existence of compensation temperature in 2d mixed-spin Ising ferrimagnets: an exactly solvable model, J MAGN MAGN, 213(1-2), 2000, pp. 117-125
Citations number
28
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
213
Issue
1-2
Year of publication
2000
Pages
117 - 125
Database
ISI
SICI code
0304-8853(200004)213:1-2<117:OTEOCT>2.0.ZU;2-M
Abstract
We introduce an exactly solvable mixed spins sigma = 1/2 and arbitrary spin s S (S > 1/2) Ising ferrimagnet. Although the system with only antiferromag netic interaction J(1) between pairs of nearest-neighbor spins sigma and S and crystal-field interaction Delta does not exhibit a compensation point, the system with additional interactions between pairs of nearest-neighbor s pins sigma, does, in agreement with Buendia and Novotny's conjecture. Final ly, we discuss the origin of compensation phenomenon. (C) 2000 Elsevier Sci ence B.V. All rights reserved.