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IRREVERSIBLE RELAXATION TRANSFORMATIONS IN AMORPHOUS CHALCOGENIDES

V. M. Kryshenik1,* , V. P. Ivanitsky2, V. S. Kovtunenko3

Affiliation

  1. Institute for Solid State Physics & Chemistry, Uzhgorod National University, Voloshyn Str. 54, 88000 Uzhgorod, Ukraine
  2. Technical Engineering Departament, Uzhgorod National University, Capitulna Str. 13, 88000 Uzhgorod, Ukraine
  3. Cherkasy Technology University, Shevchenko Boulevard 460, 257006 Cherkasy, Ukraine

Abstract

In this paper we report the results of the study of changes in optical properties of as deposited AsxS1-x (0.15£x£0.43) amorphous films depending on the composition and physical aging processes under ambient laboratory conditions. The possible nature of the obtained experimental facts is discussed in terms of the local relaxation events in the potential energy landscape approach for amorphous heterogeneous material at the nanoscale level. The post-condensation irreversible transformations in amorphous chalcogenide films as a result of competing effects of interactions for mutually separated local rigid and soft atomic configurations have been considered..

Keywords

Amorphous chalcogenides, Structural relaxations, Irreversible transformations, Ageing, As-S films, Optical properties, Optical waveguides.

Submitted at: Oct. 4, 2005
Accepted at: Nov. 24, 2005

Citation

V. M. Kryshenik, V. P. Ivanitsky, V. S. Kovtunenko, IRREVERSIBLE RELAXATION TRANSFORMATIONS IN AMORPHOUS CHALCOGENIDES, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 6, pp. 2953-2962 (2005)