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Influence of isomorphous substitution and external hydrostatic pressure on the fundamental light-absorption edge in Sn(Pb)2P2S(Se)6 crystals

  • Physics of Semiconductors and Dielectrics
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Abstract

The influence of isomorphous substitution and high hydrostatic pressure on the behavior of the fundamental absorption edge (AE) inSn(Pb) 2 P 2 S(Se) 6 ferroelectric crystals is studied. It is shown that the AE in these crystals is caused by an electron-phonon interaction, and oscillation frequencies of interacting phonons correspond to oscillations of the[P 2 S(Se) 6]4− anion sublattice. Baric and concentration changes of the Uhrbach rule parameters are analyzed.

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Authors
  1. A. G. Slivka
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  2. E. I. Gerzanich
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  3. V. S. Shusta
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  4. P. P. Guranich
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Additional information

Uzhgorod State University. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 9, pp. 23–28, September, 1999.

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Slivka, A.G., Gerzanich, E.I., Shusta, V.S. et al. Influence of isomorphous substitution and external hydrostatic pressure on the fundamental light-absorption edge in Sn(Pb)2P2S(Se)6 crystals. Russ Phys J 42, 796–800 (1999). https://doi.org/10.1007/BF02508668

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  • DOI: https://doi.org/10.1007/BF02508668

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