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.
Related projects:	Physical and chemical properties of advanced materials and structures