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Ultimate method for unambiguous identification of all donors in epitaxial GaAs and related compounds

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Abstract

When epitaxial GaAs is grown by the method of molecular beam epitaxy (mbe) it would be p-type unless it is intentionally doped lightly during growth by using a particular substitutional donor atom. We have chosen the tin donor in this case to render the specimen n-type. Then the conventional far infrared photoconductivity technique is used to observe the 1s to 2p transition of the electron of the tin donor. The identity of the donor, the energy of the quantum transition as a function of applied magnetic field intensity, and the line shape characteristics of that particular donor then become unquestionable.

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Author notes

  1. H. Morkoc

    Present address: the University of Illinois, Urbana, IL.

Authors and Affiliations

  1. Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, 02139, Cambridge, Massachusetts

    M. N. Afsar & Kenneth J. Button

  2. Bell Laboratories, 07974, Murray, Hill, New Jersey

    A. Y. Cho & H. Morkoc

Authors
  1. M. N. Afsar
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  2. Kenneth J. Button
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  3. A. Y. Cho
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  4. H. Morkoc
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Additional information

Work supported by the U.S. Air Force Office of Scientific Research under Contract #AFOSR-78-3708-D.

Supported by the National Science Foundation

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Afsar, M.N., Button, K.J., Cho, A.Y. et al. Ultimate method for unambiguous identification of all donors in epitaxial GaAs and related compounds. Int J Infrared Milli Waves 2, 1113–1121 (1981). https://doi.org/10.1007/BF01007077

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  • DOI: https://doi.org/10.1007/BF01007077

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