Glass-former/glass-modifier interactions and the stress-optic response

The stress-optic response of glass refers to the birefringence induced by application of anisotropic stress. We showed in an earlier publication [M. Guignard, L. Albrecht, J.W. Zwanziger, Chem. Mater. 19 (2007) 286] that this effect may be predicted based on the combination of bond metallicity and c...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2008-01, Vol.354 (2-9), p.79-83
Main Authors: Guignard, M., Werner-Zwanziger, U., Zwanziger, J.W.
Format: Article
Language:English
Subjects:
Ab initio
Band structure
Birefringence (including stress birefringence, flow birefringence, etc.)
Borates
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Density functional theory
Exact sciences and technology
Nuclear magnetic (and quadrupole) resonance
Optical properties
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of bulk materials and thin films
Optical spectroscopy
Phosphates
Physics
Piezo-, elasto-, acoustooptical, and photoacoustic effects
Pressure effects
Silicates
Stannates
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Summary:The stress-optic response of glass refers to the birefringence induced by application of anisotropic stress. We showed in an earlier publication [M. Guignard, L. Albrecht, J.W. Zwanziger, Chem. Mater. 19 (2007) 286] that this effect may be predicted based on the combination of bond metallicity and coordination number in the glass, and from the combination of these effects a variety of zero stress-optic glasses can be generated. In the present work we study in detail the relation of the structure and the bond metallicity to the stress-optic response in three glasses, two of which show zero and negative stress-optic response while the other shows only positive response. In particular we show by solid-state nuclear magnetic resonance spectroscopy that barium and lead phosphate glasses are much more similar in structure than tin phosphate glass, but that the lead and tin glasses have similar stress-optic response. The reason is the similar bond metallicity, which we explore by first-principles calculations, and the low metal ion coordination numbers that the lead and tin glasses exhibit.
ISSN:0022-3093
1873-4812
DOI:10.1016/j.jnoncrysol.2007.06.096