Properties and Structure of Glassy TeO2 and Binary Potassium and Boron Tellurites
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B. Hauke1, E. R. Barney2, A. Crego1, G. Tarantino1, M. Affatigato1, and S. Feller1
1Physics Department, Coe College, 1220 First Ave., Cedar Rapids, IA 52402
2Advanced Materials Research Group, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
Tellurite glasses show potential for use in mid-infrared optical applications1, but their structure has not been intensively studied. While they do not conduct light better than chalcogenides, which are currently the best glasses for infrared optics, they are much easier to produce. Potassium and boron tellurite glasses, including single component, rapidly cooled TeO2, are reported and studied here. The results include the Glass Transition Temperature (Tg) measurements and Raman spectra. Proposed structural models are also discussed.
Glass Structure, Glass Transition Temperature, Raman Spectroscopy, Tellurites
81.05.Kf, 81.70.Pg, 42.55.Ye