Characterization of nanostructures by virtue of the phenomena due to the electron-phonon interaction

Pokatilov Evghenii; Fomin Vladimir; Klimin Serghei; Balaban Serghei

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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

Characterization of nanostructures by virtue of the phenomena due to the electron-phonon interaction

DOI:https://doi.org/10.1016/S0169-4332(96)00200-0

Pag. 546-551

Pokatilov Evghenii¹, Fomin Vladimir¹², Klimin Serghei¹, Balaban Serghei¹

¹ Moldova State University,
² University of Antwerp

Disponibil în IBN: 14 iulie 2023

Rezumat

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.

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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<dc:creator>Pocatilov, E.P.</dc:creator>
<dc:creator>Fomin, V.M.</dc:creator>
<dc:creator>Klimin, S.N.</dc:creator>
<dc:creator>Balaban, S.N.</dc:creator>
<dc:date>1996-09-01</dc:date>
<dc:description xml:lang='en'><p>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 Schr&ouml;dinger 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.</p></dc:description>
<dc:identifier>10.1016/S0169-4332(96)00200-0</dc:identifier>
<dc:source>Applied Surface Science  () 546-551</dc:source>
<dc:subject>Engineering controlled terms
Electron energy levels</dc:subject>
<dc:subject>Electrons</dc:subject>
<dc:subject>Heterojunctions</dc:subject>
<dc:subject>Interfaces (materials)</dc:subject>
<dc:subject>Magnetic field effects</dc:subject>
<dc:subject>phonons</dc:subject>
<dc:subject>Semiconductor quantum wires
Engineering uncontrolled terms
Polarons
Engineering main heading
Nanostructured materials</dc:subject>
<dc:title>Characterization of nanostructures by virtue of the phenomena due to the electron-phonon interaction</dc:title>
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