Two-dimensional behavior of the sublattice magnetization in three-dimensional Ising antiferromagnets
Abstract
A three-dimensional layered Ising-Antiferromagnet with a ferromagnetic intra-layer coupling to z neighbors, zJ > 0, and an antiferromagnetic interlayer coupling to z' neighbors, z'J' < 0, is investigated by Monte Carlo simulations on a hexagonal lattice. The physical nature of the anomalous temperature bahavior of the sublattice magnetizations, which is found for certain values of r=zJ/z'J' and z' in magnetic fields is explained in terms of successive phase transitions. They take place on the ferromagnetic 2-dimensional spin-down sublattice at T = T_c^{2d}, smeared by a finite stabilizing molecular field, and on both antiferromagnetically coupled sublattices at T_c^{3d} > T_c^{2d}.
Keywords
Cite
@article{arxiv.cond-mat/9906003,
title = {Two-dimensional behavior of the sublattice magnetization in three-dimensional Ising antiferromagnets},
author = {O. Petracic and Ch. Binek and W. Kleemann},
journal= {arXiv preprint arXiv:cond-mat/9906003},
year = {2017}
}
Comments
8 pages (TeX), 6 figures (eps), submitted to World Scientific: Proceedings SDHS'99 Duisburg