| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-1551 - C8-1552 | |
| DOI | https://doi.org/10.1051/jphyscol:19888710 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1551-C8-1552
DOI: 10.1051/jphyscol:19888710
1 Purdue University, West Lafayette, IN 47907, U.S.A.
2 University of Notre Dame, Notre Dame, IN 46556, and National Bureau of Standards, Gaithersburg, MD 20899, U.S.A.
J. Phys. Colloques 49 (1988) C8-1551-C8-1552
DOI: 10.1051/jphyscol:19888710
STUDIES OF FCC HEISENBERG ANTIFERROMAGNETS BY MONTE CARLO SIMULATION ON LARGE SPIN ARRAYS
W. Minor1 et T. M. Giebultowicz21 Purdue University, West Lafayette, IN 47907, U.S.A.
2 University of Notre Dame, Notre Dame, IN 46556, and National Bureau of Standards, Gaithersburg, MD 20899, U.S.A.
Abstract
We report Monte Carlo studies of fcc Heisenberg antiferromagnets carried out on arrays with 108,000 spins. A lattice with only JNN ≠ 0 was found to exhibit a Type I AF order despite the disordered nature of its ground state. Contrary to previous reports, our data indicate in this case a first order phase transition.