Classical ferromagnet with double-exchange interaction: High-resolution Monte Carlo simulations

Authors
Caparica, AA Bunker, A Landau, DP
Citation
Aa. Caparica et al., Classical ferromagnet with double-exchange interaction: High-resolution Monte Carlo simulations, PHYS REV B, 62(14), 2000, pp. 9458-9462
Citations number
28
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
14
Year of publication
2000
Pages
9458 - 9462
Database
ISI
SICI code
0163-1829(20001001)62:14<9458:CFWDIH>2.0.ZU;2-P
Abstract
A high-resolution Monte Carlo study has been carried out for a classical fe rromagnet on the simple cubic lattice with double-exchange interaction. The static critical exponents were determined as v = 0.6949(38), beta = 0.3535 (30), and gamma = 1.3909(30). Comparison of these values, as well as the va lue of the fourth-order; cumulant at the transition temperature, with those for the classical Heisenberg model leads to the conclusion that these syst ems belong to the same universality class. Some comparisons with experiment are presented.