The emergence of Resonating Valence Bond physics in spin-orbital models
Strongly Correlated Electrons
2015-06-25 v1
Abstract
We discuss how orbital degeneracy, which is usually removed by a cooperative Jahn-Teller distortion, could under appropriate circumstances lead rather to a Resonating Valence Bond spin-orbital liquid. The key points are: i) The tendency to form spin-orbital dimers, a tendency already identified in several cases; ii) The mapping onto Quantum Dimer Models, which have been shown to possess Resonating Valence Bond phases on the triangular lattice. How this program can be implemented is explained in some details starting from a microscopic model of LiNiO.
Keywords
Cite
@article{arxiv.cond-mat/0609455,
title = {The emergence of Resonating Valence Bond physics in spin-orbital models},
author = {F. Mila and F. Vernay and A. Ralko and F. Becca and P. Fazekas and K. Penc},
journal= {arXiv preprint arXiv:cond-mat/0609455},
year = {2015}
}
Comments
10 pages, 7 figures. HFM2006 proceeding paper