Theory of Triple Magnetopolarons in Quantum-Dimensional Nanostructures

Barat Eshpulatov, Eshkuvat Arzikulov

Samarkand branch of Tashkent Information Technology University, Samarkand, Uzbekistan.
Samarkand State Universiy, Samarkand, Uzbekistan.

DOI: 10.4236/ajac.2013.49058                

Abstract

A theory of triple magnetopolarons in an isolated quantum well in a strong magnetic field was developed. We study the behavior of the magnetooptical absorption peaks corresponding to the transitions of an electron at the Landau level with quantum numbers n ≥ 2. For n = 2 at the point of equality of cyclotron frequency and the frequency of optical phonon (LO), there is a cross of three terms of the electron-phonon system (the electron at the Landau level n = 2, the electron at n = 1, and the optical phonon and electron at n = 0 and two phonons), considered as a function of the cyclotron frequency. Interaction with phonons takes off the degeneracy of the terms and leads to three disjoint branches of the electron-phonon spectrum. The theory predicts that in the resonant magnetic field, the peak of magnetooptical absorption splits into three peaks, the intensity and position of which are dependent in a complex way on the magnitude of the magnetic field and the constant of the electron-phonon coupling.

Keywords

Triple Magnetopolarons; Quantum-Dimensional Nanostucrures; Electron; Phonons; Electron-Phonon Spectrum; Magnetooptical Absorption; Resonant Magnetic Field

Conflicts of Interest

The authors declare no conflicts of interest.

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