(1)(2)(1)Sb Mossbauer spectroscopy of 10mol% Sb2Te3 section of pseudo--ternary Sb2Se3--As2Se3--Sb2Te3 glasses

The local environment of antimony atoms in vitreous samples of 10mol% Sb2Te3 section of the Sb2Se3-As2Se3-Sb2Te3 pseudo-ternary has been studied by mean of 121Sb Mossbauer spectroscopy. The Mossbauer parameters (D*C, D*d and D*D) show respectively one environment type for antimony, a decrease of the s-electron density and one less distorted local environment of Sb to 50 and 70mol% As2Se3 and one more distorted to 75 and 90mol% As2Se3 on the section 10mol% Sb2Te3.