VietNam 2013 

IXth Rencontres du Vietnam
Quy-Nhon, August 4-10, 2013

 QNplage

 Nanophysics: from fundamentals to applications

(the return)

 

Tuesday 6
Poster Session

› 21:00 - 23:00 (2h)
Influence of phonon confinement on the cyclotron-phonon resonance linewidth in cylindrical quantum wire
Huynh Vinh Phuc  1, 2@  , Luong Van Tung  1@  , Tran Cong Phong  2, 3, 4@  
1 : Department of Physics, Dong Thap University, Dong Thap, Vietnam
783 Pham Huu Lau, Cao Lanh, Dong Thap -  Vietnam
2 : Center for Theoretical and Computational Physics, Hue University's College of Education, Hue City, Vietnam
32 Le Loi, Hue City -  Vietnam
3 : Department of Physics, Hue University's College of Education, Hue City, Vietnam
32 Le Loi, Hue City -  Vietnam
4 : National Education Union of Vietnam
2 Trinh Hoai Duc, Dong Da, Ha Noi -  Vietnam

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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