The emergence of Resonating Valence Bond physics in spin-orbital models

Details The emergence of Resonating Valence Bond physics in spin-orbital models The emergence of Resonating Valence Bond physics in spin-orbital models

2006-09-19

arxiv.org/abs/cond-mat/0609455v1

Physics

Condensed Matter

Strongly Correlated Electrons

10 pages, 7 figures. HFM2006 proceeding paper

Scientific paper

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$_2$.

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