Spin-orbital resonating valence bond liquid on a triangular lattice: Evidence from finite-cluster diagonalization

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Authors	CHALOUPKA Jiří OLES Andrzej M.
Year of publication	2011
Type	Article in Periodical
Magazine / Source	Physical Review B
MU Faculty or unit	Faculty of Science
Citation
Web	http://prb.aps.org/abstract/PRB/v83/i9/e094406
Doi	http://dx.doi.org/10.1103/PhysRevB.83.094406
Field	Solid matter physics and magnetism
Keywords	spin-orbital models; frustrated magnetism
Description	We investigate the ground state of the d1 spin-orbital model for triply degenerate t2g orbitals on a triangular lattice that unifies intrinsic frustration of spin and orbital interactions with geometrical frustration. Using exact diagonalization of finite clusters, we show that the model describes a competition between various possible valence-bond states that interpolate between a highly resonating, dimer-based, entangled spin-orbital liquid phase and a valence-bond state with completely static spin-singlet states.
Related projects:	Physical and chemical properties of advanced materials and structures