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Inorganic Materials

, Volume 36, Issue 2, pp 100–104 | Cite as

On the determination of carrier mobility in compensated GaAs

  • F. P. Korshunov
  • N. F. Kurilovich
  • L. I. Murin
  • T. A. Prokhorenko
Article

Abstract

The applicability of the Brooks-Herring and Conwell-Weisskopf formulas in calculations of the carrier mobility associated with scattering by ionized impurities is examined usingn-type GaAs as an example. The Brooks-Herring approximation is shown to be inapplicable at large compensation ratios, where the Conwell-Weisskopf formula is more accurate. The applicability limits of the two formulas are established for calculations of carrier mobility from dopant concentration and compensation ratio and for calculations of the concentration of ionized centers (compensation ratio) from carrier concentration and mobility. The predicted applicability limits are consistent with experimental data.

Keywords

GaAs Carrier Mobility Applicability Limit Sation Ratio Compensation Ratio 
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Copyright information

© MAIK “Nauka/Interperiodica” 2000

Authors and Affiliations

  • F. P. Korshunov
    • 1
  • N. F. Kurilovich
    • 1
  • L. I. Murin
    • 1
  • T. A. Prokhorenko
    • 1
  1. 1.Institute of Solid-State and Semiconductor PhysicsBelarussian Academy of SciencesMinskBelarus

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