Search academic texts

Information × Registration Number 0304U004182, 0103U004194 , R & D reports Title Quantum effects in nanostructures popup.stage_title Квантові ефекти в наноструктурах Head Ermolaev A.M., Registration Date 26-03-2004 Organization Kharkov National University named after V.N.Karazin popup.description2 A subject of inquiry - nanostructures (inversion layers, heterostructures, quantum dots, wires) in a magnetic field. The purpose of operation - build-up of the theory quantum oscillation phenomenas appearances (effects where de Haasa-van Alfena, Aaronova - Boma, Shubnikova-de Haasa) in nanostructures . Build-up of the theory of acoustic waves in conductors with the magnetoimpurity state of electrons. A research technique - quantum Green functions. The designed thermodynamic functions of quantum dots in a magnetic field which are the part of devices and arrangements of the modern nanotechology have been calcullated. The effect of combined action of the quasilocal vibrations and magnetoimpurity states of electrons on impurity atoms in the lattice in quantizing magnetic field on spectrum and damping is considered. Within the framework of the electron-ion model of the nonideal conductor in the presence of magnetic field the system of equation for electron and ion Green functions is obtained. The quasilocal vibrations and magnetoimpurity states of electrons are taking into account. Under small concentrations of impurity atoms the magnetoimpurity states of electrons are caused by resonant term of polarization operator. They caused by essential rearrangement of a spectrum and damping of phonons. The magnetoimpurity states of electrons are result in existence of crossover of the phonon dispersion curve. The magnetoimpurity states are caused by appearance of new branches in the spectrum of acoustic excitations. Outcomes of examinations printed in 14 scientific papers, us research institutes of Ukraine and the countries CIS, and also in training courses for students. Product Description popup.authors popup.nrat_date 2020-04-02 Close