Entangled Spin-Orbital Phases in the d${}^9$ Model

Abstract

We investigate the phase diagrams of the spin-orbital $d^9$ Kugel-Khomskii model for a bilayer and a monolayer square lattice using Bethe-Peierls-Weiss method. For a bilayer we obtain valence bond phases with interlayer singlets, with alternating planar singlets, and two entangled spin-orbital (ESO) phases, in addition to the antiferromagnetic and ferromagnetic order. Possibility of such entangled phases in a monolayer is under investigation at present.

3 pages, 2 figures, presented at Euroconference Physics of Magnetism 2011

References in corpus (5)

• Spin-Orbital Entanglement and Violation of the Goodenough-Kanamori Rules
• Spin-orbital resonating valence bond liquid on a triangular lattice: Evidence from finite-cluster diagonalization
• Hidden dimer order in the quantum compass model
• Entangled spin-orbital phases in the bilayer Kugel-Khomskii model
• Charge and orbital order in transition metal oxides

Cited by in corpus (4)

• Fingerprints of spin-orbital entanglement in transition metal oxides
• Noncollinear Magnetic Order Stabilized by Entangled Spin-Orbital Fluctuations
• Von Neumann Entropy Spectra and Entangled Excitations in Spin-Orbital Models
• Spin, orbital and topological order in models of strongly correlated electrons