Spin-Polarized Photoelectrons from Optically Pumped p-CdSiAs2(100)

  • F. Meier
  • A. Vaterlaus
  • F. P. Baumgartner
  • M. Lux-Steiner
  • G. Doell
  • E. Bucher
Conference paper

Abstract

Starting from photothreshold (1.5 eV) the polarization of the photoyield emitted from cesiated p-CdSiAs (100) by circularly polarized light at normal incidence has been measured as function of photon energy. The transitions from the only spin-degenerate top valence band levels have been identified. The observed spin-polarization of the individual transitions is significantly less than the theoretically expected |P| = 100% which is attributed to shortcomings in the surface preparation of this ternary compound.

Keywords

GaAs Gallium Cesium Chalcopyrite Arsenide 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • F. Meier
    • 1
  • A. Vaterlaus
    • 1
  • F. P. Baumgartner
    • 2
  • M. Lux-Steiner
    • 2
  • G. Doell
    • 2
  • E. Bucher
    • 2
  1. 1.Laboratorium für FestkörperphysikZürichSwitzerland
  2. 2.Institut für PhysikUniversität KonstanzKonstanzFed. Rep. of Germany

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