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      Collective excitations in quasi-one-dimensional electron systems under a magnetic field

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      Author(s)
      Tanatar, Bilal
      Constantinou, N. C.
      Date
      1993
      Source Title
      Physical Review B
      Print ISSN
      0163-1829
      Publisher
      American Physical Society
      Volume
      48
      Issue
      24
      Pages
      18280 - 18283
      Language
      English
      Type
      Article
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      Abstract
      A study of the magnetoplasmons of a cylindrical quasi-one-dimensional electron system is given in the presence of an axial magnetic field B. A two-subband system is considered and the dispersion relations for both intrasubband and intersubband magnetoplasmons are obtained using the exact infinite wall eigenfunctions. It is demonstrated that the application of a longitudinal B changes the mode frequencies for both types of excitations. The model includes both local-field corrections, which are shown to be important, and the Hartree potential, which is given in closed form. © 1993 The American Physical Society.
      Permalink
      http://hdl.handle.net/11693/26079
      Published Version (Please cite this version)
      http://dx.doi.org/10.1103/PhysRevB.48.18280
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      • Department of Physics 2550
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