Site-Dilution-Induced Antiferromagnetic Long-Range Order in Two-Dimensional Spin-Gapped Heisenberg Antiferromagnet
Disordered Systems and Neural Networks
2009-11-07 v2 Strongly Correlated Electrons
Abstract
Effects of the site dilution on spin-gapped Heisenberg antiferromagnets with and S=1 on a square lattice are investigated by means of the quantum Monte Carlo method. It is found that effective magnetic moments induced around the diluted sites exhibit the antiferromagnetic long-range order in the medium of spin-singlet pairs. Their microscopic structure is examined in detail and important roles of the higher dimensionality than one on the phenomenon are discussed.
Keywords
Cite
@article{arxiv.cond-mat/0101337,
title = {Site-Dilution-Induced Antiferromagnetic Long-Range Order in Two-Dimensional Spin-Gapped Heisenberg Antiferromagnet},
author = {Chitoshi Yasuda and Synge Todo and Munehisa Matsumoto and Hajime Takayama},
journal= {arXiv preprint arXiv:cond-mat/0101337},
year = {2009}
}
Comments
RevTeX, 4 pages, 6 figures