Abstract
We transform the Hubbard Hamiltonian for electrons of ns bands of crystal atoms into the electron-hole Hamiltonian using Shiba operators. We use this Hamiltonian to study the behavior of the electron-hole system as a function of its internal and external parameters and show that in contrast to a one-component electron system, there are no conditions for the appearance of structural phase transitions in this two-component system.
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Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 200, No. 1, pp. 158–170, July, 2019.
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Voronkova, T.O., Sarry, A.M., Sarry, M.F. et al. Self-Consistent Approach to Solving the Problem of Crystal Lattice Formation in an Electron-Hole Plasma. Theor Math Phys 200, 1063–1073 (2019). https://doi.org/10.1134/S0040577919070109
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DOI: https://doi.org/10.1134/S0040577919070109