E-catalog        

Библиогр.: 6 назв.

Using the density functional theory we find the energy and the equilibrium density of the electron-hole liquid in diamond films. The local density approximation is used to account for exchange and correlation energy. In diamond films, electron-hole liquid is multi-component and contains electrons, and heavy, light, and spin-orbit split holes. The nonlinear Kohn- Sham equations for electrons, and heavy, light, and spin-orbit split holes are solved numerically. We find that wave functions of electrons and holes strongly overlap, so the contribution of the Coulomb interaction to the energy of electron-hole liquid is small. The exchange-correlation potentials in the center of the quantum well have a value of the order excitonic Rydberg. The energy of electron-hole pair is calculated for (111) diamond films. It is well known that in diamond crystals, the critical electron-hole liquid temperature of 170 K is observed. We show that the critical temperature of the electron-hole liquid in diamond films can reach 260 K.