| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-1549 - C8-1550 | |
| DOI | https://doi.org/10.1051/jphyscol:19888709 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1549-C8-1550
DOI: 10.1051/jphyscol:19888709
1 IVIC, Apartado 21827, Caracas 1020A, Venezuela
2 School of Physics, University of New South Wales, Kensington, NSW 2033, Australia
J. Phys. Colloques 49 (1988) C8-1549-C8-1550
DOI: 10.1051/jphyscol:19888709
FIRST VERSUS SECOND ORDER PHASE TRANSITION IN TYPE 1 ANTIFERROMAGNET ON THE FCC LATTICE
J. F. Fernandez1 et J. Oitmaa21 IVIC, Apartado 21827, Caracas 1020A, Venezuela
2 School of Physics, University of New South Wales, Kensington, NSW 2033, Australia
Abstract
We have used Monte Carlo simulations to investigate Ising systems on the FCC lattice with antiferromagnetic first neighbour interactions (J1) and ferromagnetic second neighbour interactions (J2) ("type 1 antiferromagnet"). Our results indicate that there is a first-order phase transition for J2/|J1| up to at least as large as 1, a ratio four times as large as suggested by previous workers.