Electron energy spectrum and oscillator strengths of quantum transitions in double quantum ring nanostructure driven by electric field

• Дата: 2018
• Автори: Makhanets, O.M., Gutsul, V.I., Kuchak, A.I.
• Формат: Стаття
• Мова: English
• Опубліковано: Інститут фізики конденсованих систем НАН України 2018
• Назва видання: Condensed Matter Physics
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/157467
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Electron energy spectrum and oscillator strengths of quantum transitions in double quantum ring nanostructure driven by electric field / O.M. Makhanets, V.I. Gutsul, A.I. Kuchak // Condensed Matter Physics. — 2018. — Т. 21, № 4. — С. 43704: 1–9. — Бібліогр.: 16 назв. — англ.

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.