Order of Two-Dimensional Isotropic Dipolar Antiferromagnets
Condensed Matter
2009-10-22 v1
Abstract
The question of the existence of order in two-dimensional isotropic dipolar Heisenberg antiferromagnets is studied. It is shown that the dipolar interaction leads to a gap in the spin-wave energy and a nonvanishing order parameter. The resulting finite N\'eel-temperature is calculated for a square lattice by means of linear spin-wave theory.
Keywords
Cite
@article{arxiv.cond-mat/9301033,
title = {Order of Two-Dimensional Isotropic Dipolar Antiferromagnets},
author = {C. Pich and F. Schwabl},
journal= {arXiv preprint arXiv:cond-mat/9301033},
year = {2009}
}
Comments
10 pages, REVTEX, 1 figure available upon request, TUM-CP-93-01