| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-1215 - C8-1216 | |
| DOI | https://doi.org/10.1051/jphyscol:19888550 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1215-C8-1216
DOI: 10.1051/jphyscol:19888550
1 Ames Laboratory and Department of Physics, Iowa State University, Ames, Iowa 50011, U.S.A.
2 Corporate Research Science Laboratory Exxon Research and Engineering Company Annandale, NJ 08801, U.S.A.
J. Phys. Colloques 49 (1988) C8-1215-C8-1216
DOI: 10.1051/jphyscol:19888550
STRUCTURE FACTOR OF THE RANDOM FIELD ISING MODEL
M. C. Tringides1, I. Kwon1, C. M. Soukoulis1 et Gary S. Grest21 Ames Laboratory and Department of Physics, Iowa State University, Ames, Iowa 50011, U.S.A.
2 Corporate Research Science Laboratory Exxon Research and Engineering Company Annandale, NJ 08801, U.S.A.
Abstract
Using Monte Carlo simulations, we studied the structure factor S (q) of the two-dimensional (2D) random field Ising model (RFIM) with a binary probability distribution. We observe that S (q) changes its lineshape from Lorentzian to a Lorentzian-three half form, (LRZ)3/2 as the random field and temperature are lowered. The time dependent structure factor S (q, t) after a quench from a paramagnetic phase to low temperatures is also studied. These results can provide a better understanding of diffraction scattering experiments performed on RFIM.