DOI:10.5488/CMP.21.43704 arXiv:1812.08551
Title:
Electron energy spectrum and oscillator strengths of quantum transitions in double quantum ring nanostructure driven by electric field
Author(s):
| O.M. Makhanets (Yuriy Fedkovych Chernivtsi National University, 2 Kotsyubinsky St., 58012 Chernivtsi, Ukraine) , | |
| V.I. Gutsul (Yuriy Fedkovych Chernivtsi National University, 2 Kotsyubinsky St., 58012 Chernivtsi, Ukraine) , | |
| A.I. Kuchak (Yuriy Fedkovych Chernivtsi National University, 2 Kotsyubinsky St., 58012 Chernivtsi, Ukraine) |
The effect of homogeneous electric field on the energy spectrum, wave functions of electron and oscillator strengths of intra-band quantum transitions in a double cylindrical quantum ring (GaAs/AlxGa1-xAs) is studied within the approximations of effective mass and rectangular potentials. The calculations are performed using the method of expansion of quasiparticle wave function over a complete set of cylindrical wave functions obtained as exact solutions of Schrödinger equation for an electron in a nanostructure without electric field. It is shown that the electric field essentially affects the electron localization in the rings of a nanostructure. Herein, the electron energies and oscillator strengths of intra-band quantum transitions non-monotonously depend on the intensity of electric field.
Key words:
nanoring, electron, energy spectrum, oscillator strength, electric field
PACS:
73.21.La, 78.67.Hc
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