Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1623171 | Journal of Alloys and Compounds | 2008 | 5 Pages |
Abstract
A tight binding formalism within virtual crystal approximation in which, the effects of composition disorder and bonds relaxation are involved, is applied to the quaternary system ZnyCd1−ySexTe1−x so as to compute its energy band gap and predict the ionic character. A new model, calculating the relaxation of bonds for the quaternary alloys is presented. The electronic parameters of the quaternary alloy considered are calculated as function of x composition. Very good agreement is obtained between the available experimental data and our results.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
K. Benkabou, N. Amrane, M. Maachou,