Elementary Excitations in the Symmetric Spin--Orbital Model

Abstract

Possible types of elementary excitations in the symmetric spin-orbital model on the a square lattice are analyzed using a spherically symmetric self-consistent approach. The excitation spectra are calculated. The behavior of the corresponding correlation functions depending on the temperature and parameters of the model is studied. A schematic phase diagram is plotted. It is shown that the thermodynamics of the system is mainly determined by elementary excitations with the entangled spin and orbital degrees of freedom.

5 pages, 5 figures

References in corpus (5)

• Spin-Orbital Separation in the quasi 1D Mott-insulator Sr2CuO3
• A Z${}_2$ spin-orbital liquid state in the square lattice Kugel-Khomskii model
• Entanglement Entropy and Spectra of the One-dimensional Kugel-Khomskii Model
• Noncollinear Magnetic Order Stabilized by Entangled Spin-Orbital Fluctuations
• Von Neumann Entropy Spectra and Entangled Excitations in Spin-Orbital Models