Modified Positron Annihilation Model for Glassy-Like As_2Se_3

• Authors: A. Kozdras , O. Shpotyuk , A. Kovalskiy , J. Filipecki
• Languages of publication: EN

Abstracts

EN

An approach to structural characterization of chalcogenide glasses based on the study of void distribution is discussed. The results of positron annihilation lifetime spectra measurements for glassy-like g-As_2Se_3 are compared with nano-void distribution data obtained from Monte Carlo simulation. In this consideration perspectives to involve the parameters of nano-voids calculated from the first sharp diffraction peak in the framework of known Elliott's model are analyzed.

Keywords

EN

61.80.Ed; 61.82.Ms; 78.70.Bj

Discipline

• 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)
• 61.82.Ms: Insulators
• 61.80.Ed: γ-ray effects

• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 107
• Issue: 5
• Pages: 832-836

Dates

published

2005-05

received

2004-09-20

Contributors

author

A. Kozdras

• Physics Laboratory, Opole Technical University, Ozimska 75, 45-370 Opole, Poland

author

O. Shpotyuk

• Institute of Materials, Scientific Research Company "Carat", Stryjska 202, 79031 Lviv, Ukraine
• Institute of Physics, Jan Dlugosz University, Al. Armii Krajowej 13/15, 42-201 Częstochowa, Poland

author

A. Kovalskiy

• Institute of Materials, Scientific Research Company "Carat", Stryjska 202, 79031 Lviv, Ukraine

author

J. Filipecki

• Institute of Physics, Jan Dlugosz University, Al. Armii Krajowej 13/15, 42-201 Częstochowa, Poland

References

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• 9. O. Shpotyuk, J. Filipecki, Free Volume in Vitreous Chalcogenide Semiconductors: Possibilities of Positron Annihilation Lifetime Study, WSP, Czestochowa 2003, p. 114
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Identifiers

DOI

10.12693/APhysPolA.107.832