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Investigations of Cr in GaAs Using Phonons

  • P. Bury
  • L. J. Challis
  • P. J. King
  • D. J. Monk
  • A. Ramdane
  • V. W. Rampton
  • P. Wiscombe

Abstract

The paper reviews published spectroscopic work on Cr in GaAs using a variety of phonon techniques from 0.1 to 1000 GHz. All this work was done on semi-insulating material. It then describes recent Nottingham work on n-type, p-type and semi-insulating samples before and after photoexcitation using acoustic paramagnetic resonance, relaxation measurements, thermal conductivity and magnetothermal conductivity (frequency crossing). The spectra observed are thought to be largely due to Cr2+ but cannot be explained by the model with a static Jahn-Teller effect, which describes the EPR data at two very different frequencies. Possible explanations are advanced.

Keywords

Resonant Scattering Superconducting Tunnel Junction Czech Sample Magnetic Field Angle Field Thermal Conductivity 
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

© P. Bury, L.J. Challis, P.J. King, D.J. Monk, A. Ramdane, V.W. Rampton and P. Wiscombe 1980

Authors and Affiliations

  • P. Bury
    • 1
    • 2
  • L. J. Challis
    • 1
  • P. J. King
    • 1
  • D. J. Monk
    • 1
  • A. Ramdane
    • 1
  • V. W. Rampton
    • 1
  • P. Wiscombe
    • 1
  1. 1.Department of PhysicsUniversity of NottinghamNottinghamUK
  2. 2.Department of PhysicsTechnical University of Advanced Transport EngineeringZilinaCzechoslovakia

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