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Experimental Hall Effect Data for a Small-Polaron Semiconductor

  • P. Nagels

Abstract

The current state of small-polaron theory is briefly reviewed. Experimental evidence for the existence of small polarons in reduced single crystals of lithium niobate, based on electrical conductivity, thermopower and Hall effect measurements, is presented. The transport coefficients of this material exhibit all the typical features of hopping motion of small polarons in the non-adiabatic regime. The drift mobility μ D is very low and manifests a thermally-activated temperature dependence. The Hall mobility μ H is greater than the drift mobility and increases exponentially with temperature dependences of μ D and μ H are in accord with that derived by Holstein and Friedman for small-polaron hopping.

Keywords

Carrier Density Lithium Niobate Transport Coefficient Hall Mobility Hall Coefficient 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1980

Authors and Affiliations

  • P. Nagels
    • 1
  1. 1.Materials Science DepartmentS.C.K./C.E.N.MOLBelgium

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