The Spin-1 Heisenberg Antiferromagnet: New Results from Series Expansions
Other Condensed Matter
2008-04-09 v1 Strongly Correlated Electrons
Abstract
We calculate ground state properties (energy, magnetization, susceptibility) and one-particle spectra for the Heisenberg antiferromagnet with easy-axis or easy-plane single site anisotropy, on the square lattice. Series expansions are used, in each of three phases of the system, to obtain systematic and accurate results. The location of the quantum phase transition in the easy-plane sector is determined. The results are compared with spin-wave theory.
Keywords
Cite
@article{arxiv.0804.1171,
title = {The Spin-1 Heisenberg Antiferromagnet: New Results from Series Expansions},
author = {J. Oitmaa and C. J. Hamer},
journal= {arXiv preprint arXiv:0804.1171},
year = {2008}
}
Comments
13 pages, 13 figures