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Quality of Bulk CdTe Substrates and its Relation to Intrinsic Defects

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Abstract

Both the cadmium vacancy (VCd) and the tellurium vacancy (VTe) in CdTe are identified by means of electron paramagnetic resonance (EPR). The VCd is a double acceptor and the EPR spectrum is observed in its single negative charge state. The symmetry is found to be trigonal, which can be explained in a model in which the hole occupies a dangling bond t2 orbital and the orbital degeneracy is removed by a static Jahn-Teller distortion. The hyperfine interaction shows that the hole is localised on one of the four Te neighbours. The EPR spectrum of VTe+ reveals cubic (unperturbed) symmetry and the hyperfine structure shows that the unpaired electron is equally spread over the four Cd neighbours. Photo-EPR measurements locate the 0/+ state of VTe at Ev + 0.2 eV and the 2−/− acceptor level of VCd to be situated less than 0.47 eV above the valence band.

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References

  1. G. Brunthaler, W. Jantsch, U. Kaufmann and J. Schneider, J. Phys. Condens. Matter 1, 1925 (1989).

    Article  CAS  Google Scholar 

  2. D. M. Hoffmann, P. Omling, H. G. Grimmeiss, B. K. Meyer, K. W. Benz and D. Sinerius, Phys. Rev. B 45, 6247 (1992).

    Article  Google Scholar 

  3. W. Stadler, D. M. Hofmann, B. K. Meyer, B. Kowalski, P. Emanuelsson, P. Omling, E. Weigel and G. Müller-Vogt, unpublished.

  4. B. K. Meyer, P. Omling, E. Weigel and G. Müller-Vogt, Phys. Rev. B 46, 15135 (1992).

    Article  CAS  Google Scholar 

  5. P. Emanuelsson, P. Omling, B. K. Meyer, M. Wienecke and M. Schenk, to be published in Phys. Rev. B.

  6. J. Schneider and A. Räuber, Solid state commun. 5, 779 (1967).

    Article  CAS  Google Scholar 

  7. G. D. Watkins, National Technical Information Service (Clearinghouse, Springfield, VA 22151, USA) Report ARLTR 75-0011 (1975).

    Google Scholar 

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Acknowledgments

The authors are grateful to Prof. Dr. P. Rüdolph for providing the crystals used for the cadmium vacancy investigation. This work was supported by the Swedish Natural Science Research Council, by the Swedish Board for Industrial and Technical Development and by the Deutsche Forschungsgemeinschaft (Be 896/3-1; Me 898/3-1).

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Authors and Affiliations

  1. Physikdepartment El6, Technical University Munich, D-8046, Garching, Germany

    B. K. Meyer, D. M. Hofmann, W. Stadler, P. Emanuelsson, P. Omling, E. Weigel, G. Müller-Vogt, F. Wienecke & M. Schenk

  2. Department of Solid State Physics, University of Lund, Box 118, S-221 00, Lund, Sweden

    P. Emanuelsson & P. Omling

  3. Kristall- und Materiallabor, University Karlsruhe, D-7500, Karlsruhe, Germany

    E. Weigel & G. Müller-Vogt

  4. Humboldt-University, D-1000, Berlin, Germany

    F. Wienecke & M. Schenk

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  1. B. K. Meyer
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  2. D. M. Hofmann
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  3. W. Stadler
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  4. P. Emanuelsson
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  5. P. Omling
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  6. E. Weigel
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  7. G. Müller-Vogt
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  8. F. Wienecke
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  9. M. Schenk
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Meyer, B.K., Hofmann, D.M., Stadler, W. et al. Quality of Bulk CdTe Substrates and its Relation to Intrinsic Defects. MRS Online Proceedings Library 302, 433–437 (1993). https://doi.org/10.1557/PROC-302-433

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  • DOI: https://doi.org/10.1557/PROC-302-433

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