Quantum phase transitions of the S=1 Shastry-Sutherland model
Strongly Correlated Electrons
2009-11-07 v1
Abstract
We investigate quantum phase transitions of the two-dimensional S=1 Shastry-Sutherland model, which is characterized by the frustrated orthogonal-dimer structure, by means of the exact diagonalization method and the Ising-type series expansion method. We clarify how distinct spin gap phases realized in the chain system are adiabatically connected to those in the two-dimensional Shastry-Sutherland model. The effect of single-ion anisotropy is also discussed.
Keywords
Cite
@article{arxiv.cond-mat/0211419,
title = {Quantum phase transitions of the S=1 Shastry-Sutherland model},
author = {Akihisa Koga and Norio Kawakami and Manfred Sigrist},
journal= {arXiv preprint arXiv:cond-mat/0211419},
year = {2009}
}
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5 pages