Influence of Bi Concentration on Major Physical Parameters of Ge14BixSe76-xTe10 Based Chalcogenide Glasses

Abstract

The investigation of some useful properties of chalcogenide glasses with respect to composition has been increased in recent years for characterization and improvement of the properties of chalcogenide glasses and the materials exhibiting particularly the switching phenomenon ever since reversible switching phenomenon in certain types of chalcogenide glasses was first reported. In the present article, the influence of varying the bismuth content on the physical parameters has been studied theoretically for Ge14 Bix Se76-x Te10 (x = 1.5, 4.5, 7.5, 10.5, 13.5, 16.5, 19.5, 22.5 at. %) based chalcogenide glasses. The variation in glass transition temperature has been studied using two approaches, namely the Tichy – Ticha approach and Lankhorst approaches. The smooth variation of almost all parameters, studied here, indicates the suitability of this combination for phase change optical recording and finds valuable applications in rewritable optical recording