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Self-trapping transition of acoustic polaron in freestanding cylindrical nanowires

J. H. HOU1, X. Q. LIU1, X. F. DUAN1,*

Affiliation

  1. College of Physics and Information Engineering, Shanxi Normal University, Linfen 041004, China

Abstract

The interaction of electron and the modulated acoustic phonon in free-standing cylindrical nanowire is investigated theoretically. The interaction Hamiltonian is derived by taking the divergence of the displacement vector of the acoustic phonon. The variational computations for the ground-state energy of the acoustic polaron in cylindrical nanowires are numerically performed for different cutoff wave-vectors. The electron and the hole are confirmed to have the self-trapping transition in both the AlN and GaN cylindrical nanowire structures..

Keywords

Free-standing cylindrical nanowires, Acoustic polaron, Self-trapping.

Citation

J. H. HOU, X. Q. LIU, X. F. DUAN, Self-trapping transition of acoustic polaron in freestanding cylindrical nanowires, Optoelectronics and Advanced Materials - Rapid Communications, 9, 5-6, May-June 2015, pp.746-749 (2015).

Submitted at: April 6, 2015

Accepted at: May 7, 2015