Theory of Surface Polaritons in n-InSb in the Presence of a DC Current and an External DC Magnetic Field.

Abstract

The dispersion relation for p-polarized surface polaritons has been obtained for n-InSb when a dc electric current is flowing parallel to the surface. An external, dc magnetic field, parallel to the surface, and perpendicular to the direction of propagation of the surface polariton, is assumed to be present. The solutions of the dispersion relation show that the presence of the magnetic field shifts the surface polariton dispersion curve with respect to the no-field curve. The inclusion of damping leads to backbending of the dispersion curves across the light line. Amplification of the surface polariton can occur for drift velocities greater than a certain critical value. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1977
Accession Number
ADA048217

Entities

People

  • A. A. Maradudin
  • B. G. Martin
  • Richard F. Wallis

Organizations

  • University of California, Irvine

Tags

DTIC Thesaurus Topics

  • Boltzmann Equation
  • California
  • Current Density
  • Dispersion Relations
  • Dispersions
  • Electric Current
  • Electrons
  • Equations
  • Fermi Levels
  • Frequency
  • Magnetic Fields
  • Polaritons
  • Pressure Gradients
  • Semiconductors
  • Surface Waves
  • Waves

Fields of Study

  • Physics

Readers

  • Aerospace Research.
  • Materials Science and Engineering.
  • Plasma Physics / Magnetohydrodynamics