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Lattice dynamics and phase transitions in IV–VI compounds

  • 6. Lattice Dynamics and Phase Transition
  • Conference paper
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Physics of Narrow Gap Semiconductors

Part of the book series: Lecture Notes in Physics ((LNP,volume 152))

Abstract

A pseudopotential theory of the zone-center phonon spectrum is presented and applied to IV–VI compounds. All covalently bonded NaCL or CsCL type cubic, binary semiconductors are predicted to be candidates for ferroelectricity. The structural instabilities of IV–VI's are explained. We demonstrate that a large optical dielectric constant or a small energy gap does not imply soft phonons and vice versa.

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Author information

Author notes

  1. P. Vogl

    Present address: Max-Planck-Institut fuer Festkoerperforschung, D-7000, Stuttgart 80, Germany

Authors and Affiliations

  1. Department of Electrical Engineering, Colorado State University, 80523, Fort CoLLins, CO, USA

    W. Porod

  2. Institut Theoretische Physik, Universitaet Graz, A-8010, Graz, Austria

    P. Vogl

Authors
  1. W. Porod
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  2. P. Vogl
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Editor information

E. Gornik H. Heinrich L. Palmetshofer

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© 1982 Springer-Verlag

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Porod, W., Vogl, P. (1982). Lattice dynamics and phase transitions in IV–VI compounds. In: Gornik, E., Heinrich, H., Palmetshofer, L. (eds) Physics of Narrow Gap Semiconductors. Lecture Notes in Physics, vol 152. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-11191-3_40

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  • DOI: https://doi.org/10.1007/3-540-11191-3_40

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-11191-7

  • Online ISBN: 978-3-540-38978-1

  • eBook Packages: Springer Book Archive

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