Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
155 0 |
SM ISO690:2012 POKATILOV, Evghenii, FOMIN, Vladimir, KLIMIN, Serghei, BALABAN, Serghei. Characterization of nanostructures by virtue of the phenomena due to the electron-phonon interaction. In: Applied Surface Science, 1996, vol. 104-105, pp. 546-551. ISSN 0169-4332. DOI: https://doi.org/10.1016/S0169-4332(96)00200-0 |
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Applied Surface Science | ||||||
Volumul 104-105 / 1996 / ISSN 0169-4332 | ||||||
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DOI:https://doi.org/10.1016/S0169-4332(96)00200-0 | ||||||
Pag. 546-551 | ||||||
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Investigations of polarons in a polar cylindrical quantum wire are carried out for various barrier potentials at the interface. It is shown that dependencies of the ground-state energy and the effective mass on the radius of the wire may be used in order to determine the mechanical boundary conditions in a heterostructure under consideration. In the presence of a magnetic field directed along the wire axis, the Schrödinger equation with a centred parabolic potential within the wire is solved exactly and the energy spectrum depending on the magnetic field is obtained. As far as a splitting and a pinning of the energy levels of magnetopolarons are revealed to depend on the electron-phonon interaction, they can be used for an effective characterization of the state of interfaces in nanostructures. A relative intensity of absorption for the different polarizations of light determines the degree of non-perfectness of the interfaces. The geometrical features of interface can be characterized by means of the cyclotron and the cyclotron-phonon resonances. |
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Cuvinte-cheie Engineering controlled terms Electron energy levels, Electrons, Heterojunctions, Interfaces (materials), Magnetic field effects, phonons, Semiconductor quantum wires Engineering uncontrolled terms Polarons Engineering main heading Nanostructured materials |
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