Compositional invariance of the glass-transition temperature and Urbach-tail slope in Ge 20Sb 15− xBi xS 65 glasses

L Tichý,J Málek

doi:10.1016/0167-577x(92)90192-m

Compositional invariance of the glass-transition temperature and Urbach-tail slope in Ge 20Sb 15− xBi xS 65 glasses

L Tichý, J Málek

https://doi.org/10.1016/0167-577x(92)90192-m

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Journal: Materials Letters	Publication Date: Jul 1, 1992
Citations: 1

Affiliation: Institute of Chemical Technology

#Urbach-tail Slope #Mean Coordination Number + Show 7 more

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Abstract

A compositionally invariant glass transition temperature ( T g ) and Urbach-tail slope (σ) in Ge 20Sb 15− x Bi x S 65 glasses were found. This is in agreement with physically based correlations between T g and mean coordination number and between T g and σ. Using reasonable assumptions, good agreement between experimental and calculated T g and σ values has been found.

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