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Disorder Defects Modelling for Some Ternary Crystals

Published online by Cambridge University Press:  21 March 2011

Valeriy G. Voevodin and
Olga.V. Voevodina
Valeriy G. Voevodin
Affiliation:
Siberian Physico-Technical Institute 1 Revolution sq., 634050, Tomsk, Russia
Olga.V. Voevodina
Affiliation:
Siberian Physico-Technical Institute 1 Revolution sq., 634050, Tomsk, Russia
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Abstract

Absrtact:

The attempt to obtain the data on thermodynamic parameters and equilibrium concentra- tions of disorder defects was made. Quasi-chemical model of the defects formation with allow- ance for Schottky and Frenkel defects was used. Thermodynamic parameters were calculated based on Weiser's technique. Six types of the disorder defects in II-IV-V2 and I-III-VI2 were considered. Used models, approaches and initial parameters give that the greatest concentration (∼ 1019 cm−3) and accordingly the greatest influence on properties of the crystals have defects AB or BA.

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