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Quasi-Two-Dimensional Shallow Donors in a High Magnetic Field

  • S. Huant
  • W. Knap
  • R. Stepniewski
  • G. Martinez
  • V. Thierry-Mieg
  • B. Etienne
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 87)

Abstract

Hydrogenic donors in confined semiconducting materials are worth studying because they exhibit interesting similarities with the hypothetical two-dimensional (2D) hydrogen atom /1/. A detailed understanding of their properties is also required for the material doping in view of device applications. Far-infrared magneto-spectroscopy — especially in high magnetic fields - has long proved to be a valuable tool for the study of impurity states in bulk semiconductors and also more recently in quasi-2D materials /2,3/. In the present communication, we summarize our magneto-optical studies carried out on the Silicon impurity in GaAs-GaA1As multiquantum-wells (MQW). Special emphasis is given to the optical phonon energy region where 2D bound resonant polarons are observed.

Keywords

High Magnetic Field Impurity State Shallow Donor Acceptor State Dopant Profile 
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Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • S. Huant
    • 1
  • W. Knap
    • 2
    • 3
  • R. Stepniewski
    • 1
    • 3
  • G. Martinez
    • 1
  • V. Thierry-Mieg
    • 4
  • B. Etienne
    • 4
  1. 1.SNCl/CNRSGrenoble CedexFrance
  2. 2.GES/USTLMontpellier CedexFrance
  3. 3.Institute of Experimental PhysicsWarsaw UniversityWarsawPoland
  4. 4.L2M/CNRSBagneuxFrance

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