Applied Physics B

, Volume 103, Issue 2, pp 351–356 | Cite as

Orientational dependencies of space-charge waves under the action of a magnetic field in GaAs:Cr

  • D. V. Petrov
  • A. V. Shamray
  • B. Hilling
  • K.-M. Voit
  • M. Lemmer
  • M. Imlau
Article
  • 59 Downloads

Abstract

Space-charge wave (SCW) excitation is studied under the influence of an external magnetic field in GaAs:Cr depending on the orientational angle of the exciting oscillating sinusoidal interference pattern to the external electric field. It was found that the tilt of the SCW propagation direction induced by the magnetic field results in a shift of the orientational dependence curve. This feature allows determining the deviation angle of charge carriers’ trajectory and their sign. A quantitative theoretical explanation of the effects is proposed and a theoretical expression for the SCW ac-current is given.

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • D. V. Petrov
    • 1
  • A. V. Shamray
    • 1
  • B. Hilling
    • 2
  • K.-M. Voit
    • 2
  • M. Lemmer
    • 2
  • M. Imlau
    • 2
  1. 1.Ioffe Physical Technical InstituteRussian Academy of SciencesSt. PetersburgRussia
  2. 2.Fachbereich PhysikUniversität OsnabrückOsnabrückGermany

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