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Magnetic Order in Transition Metal Oxides with Orbital Degrees of Freedom

Andrzej M. Oles
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Abstract

We investigate the frustrated magnetic interactions in cubic transition metal oxides with orbital degeneracy. The $e_g$ orbitals order easier and their ordering explains the $A$-type antiferromagnetic phase in KCuF$_3$ and LaMnO$_3$. In $t_{2g}$ systems the magnetic order changes at a transition from an orbital liquid to orbital ordered states. The fluctuations of $t_{2g}$ orbitals play a prominent role in LaVO$_3$ and YVO$_3$, where they compete with the Jahn-Teller effect and trigger the C-type antiferromagnetic order.

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Andrzej M. Oles. 2002-01-25. Magnetic Order in Transition Metal Oxides with Orbital Degrees of Freedom. https://doi.org/10.1063/1.1639588

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