One-Dimensional S=1 Spin-Orbital Model with Uniaxial Single-Ion Anisotropy
Strongly Correlated Electrons
2009-11-10 v1
Abstract
We investigate ground-state properties of a one-dimensional S=1 spin-orbital model with or without uniaxial single-ion anisotropy. By means of the density matrix renormalization group method, we compute the ground-state energy, the magnetization curves and the correlation functions. We discuss how the ground-state properties depend on the two exchange couplings for orbital and spin sectors. The phase diagram obtained is compared with that for the S=1/2 model. We also address the effect of uniaxial single-ion anisotropy.
Keywords
Cite
@article{arxiv.cond-mat/0412067,
title = {One-Dimensional S=1 Spin-Orbital Model with Uniaxial Single-Ion Anisotropy},
author = {Satoshi Miyashita and Norio Kawakami},
journal= {arXiv preprint arXiv:cond-mat/0412067},
year = {2009}
}
Comments
7 pages, 10 figures, accepted for publication in J. Phys. Soc. Jpn