Speaker
Dr
Alexander Vasilchenko
(Kuban State Technological University, Krasnodar, Russia)
Description
The study of the properties of electron-hole systems is one of the rapidly developing areas of modern condensed matter phys-ics. At present, most attention is paid to low-dimensional elec-tron-hole systems, in which the role of the Coulomb interaction increases. Recently, electron-hole liquid (EHL) was found in SiO2/Si/SiO2 quantum wells [1] and in Si/Si1–xGex/Si het-erostructures [2].
The aim of this work is to find the energy and equilibrium density of a quasi-two-dimensional EHL. The ground states of quasi-two-dimensional EHL are studied by the density func-tional theory. The nonlinear Schrödinger equations for electrons and holes are numerically solved. The wave functions and en-ergy levels of electrons and holes field are found. The binding energy of the electron and hole for different surfaces of silicon is calculated. The calculated values of the equilibrium density are in good agreement with the experimental values [2].
The work was supported by the RFBR and Administration of the Krasnodar Region (Project No. 16-42-230280).
1. N. Pauc, V. Calvo, J. Eymery, et al., Phys. Rev. B, 72, 205325 (2005).
2. S.N. Nikolaev, V.S. Krivobok, V.S.Baga, et al., Pisma Zh. Exp. Teor. Fiz., 194, 61 (2016).
Primary author
Dr
Alexander Vasilchenko
(Kuban State Technological University, Krasnodar, Russia)
Co-author
Prof.
Gennadiy Kopytov
(Kuban State University, Krasnodar, Russia)
