Theory of Impurity Effects on the Spin Nematic State
Strongly Correlated Electrons
2011-11-18 v3
Abstract
The effect of magnetic bond disorder in otherwise antiferro nematic ordered system is investigated. We introduced triangular-shaped ferromagnetic bond disorder in the S=1 bilinear-biquadratic model on a triangular lattice. It is shown that the coupling between the impurity magnetic moment and nonmagnetic excitation in the bulk yields single-moment anisotropy and long-range anisotropic interaction between impurity magnetic moments. This interaction can induce unconventional spin-freezing phenomena observed in triangular magnet, NiGa2S4.
Keywords
Cite
@article{arxiv.1104.5354,
title = {Theory of Impurity Effects on the Spin Nematic State},
author = {Junji Takano and Hirokazu Tsunetsugu},
journal= {arXiv preprint arXiv:1104.5354},
year = {2011}
}
Comments
19 pages, 14 figures