Spin-Orbital Liquid on a Triangular Lattice

Abstract

Using Lanczos exact diagonalization of finite clusters we demonstrate that the spin-orbital $d^1$ model for triply degenerate $t_{2g}$ orbitals on a triangular lattice provides an example of a spin-orbital liquid ground state. We also show that the spin-orbital liquid involves entangled valence bond states which violate the Goodenough-Kanamori rules, and modify effective spin exchange constants.

4 pages, 2 figures, presented at Euroconference Physics of Magnetism 2011

References in corpus (8)

• Spin-Orbital Entanglement and Violation of the Goodenough-Kanamori Rules
• Evolution of Spin-Orbital-Lattice Coupling in the $R$VO${}_3$ Perovskites
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• Entangled spin-orbital phases in the bilayer Kugel-Khomskii model
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Cited by in corpus (1)

• Valence Bond Crystal and possible orbital pinball liquid in a t2g model