Abstract
The compositional dependence of the stress-optic coefficient of zinc tellurite glass was studied and correlated with local structure. The stress-optic response was determined by using the Sénarmont method, while local structure was determined by using x-ray absorption fine structure spectroscopy (XAFS) at the zinc K-edge, and Raman spectroscopy. Estimates of bond lengths d and coordination numbers NC were made and the ratio d/NC showed a strong correlation with the stress-optic coefficient, in agreement with the empirical model proposed previously by Zwanziger and co-workers. This finding is significant because both glass constituents, namely ZnO and TeO2, have complex electronic structure and are predicted by the empirical model to be at the threshold between positive and negative stress response; these glasses thus represent a rigorous check of the empirical model.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
