Abstract:
Possible types of elementary excitations in the symmetric spin-orbital model on 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.
Citation:
M. Yu. Kagan, K. I. Kugel', A. V. Mikheenkov, A. F. Barabanov, “Elementary excitations in the symmetric spin-orbital model”, Pis'ma v Zh. Èksper. Teoret. Fiz., 100:3 (2014), 207–212; JETP Letters, 100:3 (2014), 187–191
This publication is cited in the following 7 articles:
Maxim Yu. Kagan, Kliment I. Kugel, Alexander L. Rakhmanov, Artem O. Sboychakov, Springer Series in Solid-State Sciences, 201, Electronic Phase Separation in Magnetic and Superconducting Materials, 2024, 1
Kagan M.Yu. Kugel I K. Rakhmanov A.L., Phys. Rep.-Rev. Sec. Phys. Lett., 916 (2021), 1–105
V. E. Valiulin, A. V. Mikheyenkov, K. I. Kugel, A. F. Barabanov, JETP Letters, 109:8 (2019), 546–551
A. V. Mikheenkov, V. E. Valiulin, A. V. Shvartsberg, A. F. Barabanov, J. Exp. Theor. Phys., 126:3 (2018), 404–416
A. F. Barabanov, A. V. Mikheyenkov, N. A. Kozlov, JETP Letters, 102:5 (2015), 301–306