274 citations · 1.3k across the 12 of their papers we have counts for
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cond-mat.str-el1998
Classical frustration and quantum disorder in spin-orbital models
J. Zaanen, L. F. Feiner, A. M. Oles
The most elementary of all physical spin-orbital models is the Kugel-Khomskii model describing a S=1/2, degenerate Mott-insulator. Recent theoretical work is reviewed reveali…
cond-mat.str-el1998★ 52 cited
Quantum disorder versus order-out-of-disorder in the Kugel-Khomskii model
Louis Felix Feiner, Andrzej M. Oles, Jan Zaanen
The Kugel-Khomskii model, the simplest model for orbital degenerate magnetic insulators, exhibits a zero temperature degeneracy in the classical limit which could cause genuine qua…
cond-mat.str-el1998★ 226 cited
Electronic origin of magnetic and orbital ordering in insulating LaMnO_3
Louis Felix Feiner, Andrzej M. Oles
We derive a spin-orbital model for insulating LaMnO_3 which fulfills the SU(2) symmetry of S=2 spins at Mn^{3+} ions. It includes the complete e_g and t_{2g} superexchange which fo…