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Influence of phonon confinement on the cyclotron-phonon resonance linewidth in
cylindrical quantum wire
Huynh Vinh Phuc1,3, Luong Van Tung1, Tran Cong Phong2,3
1
Department of Physics, Dong Thap University, Dong Thap, Vietnam
Department of Physics, Hue University’s College of Education, Hue City,
Vietnam
2
Center for Theoretical and Computational Physics, Hue University’s College of
Education, Hue City, Vietnam
3
Abstract
In this paper, the theory of cyclotron-phonon resonance (CPR) in a cylindrical
quantum wire (CQW) has been studied in the case of electron-LO phonon
interaction. The analytic expression for the absorption power in CQW is obtained.
The CPR conditions as functions of the photon energy and the wire’s radius are
also obtained. The splitting of CPR peaks caused by the confined phonon are
discussed. Using profile method, we obtain the CPR-linewidth as profiles of the
curves. The temperature and the magnetic field dependence of the CPR-linewidth
have been investigated. The results are compared with those in the case of bulk
phonon.
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