Numéro
J. Phys. IV France
Volume 07, Numéro C1, Mars 1997
7th INTERNATIONAL CONFERENCE ON FERRITES
Page(s) C1-175 - C1-176
DOI https://doi.org/10.1051/jp4:1997163
7th INTERNATIONAL CONFERENCE ON FERRITES

J. Phys. IV France 07 (1997) C1-175-C1-176

DOI: 10.1051/jp4:1997163

Critical Behavior of a Mixed Ising Ferrimagnet

G.M. Buendía1 and M.A. Novotny2

1  Departamento de Física, Universidad Simón Bolívar, Apdo. 89000, Caracas 1080, Venezuela
2  Supercomputer Computations Research Institute, Florida State University and Department of Electrical Engineering, Florida A&M, Florida State University, Tallahassee, Florida 32310-6046, U.S.A.


Abstract
The critical behavior of a 2-D mixed ferrimagnetic spin2-spin1/2 Ising model has been studied with Monte Carlo and transfer-matrix techniques. This model is relevant for understanding bimetallic molecular ferrimagnetic materials. We calculate the finite temperature phase diagram putting special attention to the location and characterization of compensation points. We found that a compensation temperature appears when the interaction between the next-nearest neighbors spins 1/2 is included.



© EDP Sciences 1997