English, Article edition: POLAR INTERFACE-OPTICAL VIBRATIONAL SPECTRA IN A WURTZITE GaN/AlN RECTANGULAR QUANTUM WIRE L. ZHANG

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Physical Description
  • article
Language
  • English

Edition details

Title
  • POLAR INTERFACE-OPTICAL VIBRATIONAL SPECTRA IN A WURTZITE GaN/​AlN RECTANGULAR QUANTUM WIRE
Author
  • L. ZHANG
Physical Description
  • article
Notes
  • Under the dielectric continuum model and Loudon's uniaxial crystal model, the interface optical (IO) phonon modes in a quasi-one-dimensional (Q1D) wurtzite rectangular quantum wire are deduced and analyzed. Numerical calculation on a wurtzite GaN/​AlN rectangular wurtzite quantum wire was performed. Results reveal that the dispersion frequencies of IO modes sensitively depend on the geometric structures of the Q1D wurtzite rectangular quantum wires. The degenerating behavior of the IO phonon modes in the Q1D wurtzite rectangular quantum wire has been clearly observed for small free wave number kz in z-direction. The limited frequency behaviors of IO modes have been analyzed deeply, and detailed comparisons with those in wurtzite planar quantum wells and cylindrical quantum wires are also done. Moreover, once the anisotropy of the wurtzite material has been ignored, the present theories can be naturally reduced to the situation of Q1D cubic rectangular quantum wire systems.
  • Interface modes, wurtzite heterostructure, rectangular quantum wires, 78.67.Lt, 74.25.Kc, 63.20.Kr, 81.05.Ea
  • RePEc:wsi:srlxxx:v:13:y:2006:i:01:p:75-80
Language
  • English
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