Spin-Orbital Liquid on a Triangular Lattice

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Authors

OLES Andrzej M. CHALOUPKA Jiří

Year of publication 2012
Type Article in Periodical
Magazine / Source Acta physica polonica A
MU Faculty or unit

Faculty of Science

Citation
Field Solid matter physics and magnetism
Keywords spin-orbital liquid; entangled valence bond states; exact diagonalization
Description 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.
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