| Issue |
J. Phys. Colloques
Volume 42, Number C4, Octobre 1981
Proceedings of the Ninth International Conference on Amorphous and Liquid Semiconductors
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|---|---|---|
| Page(s) | C4-193 - C4-196 | |
| DOI | https://doi.org/10.1051/jphyscol:1981439 | |
Proceedings of the Ninth International Conference on Amorphous and Liquid Semiconductors
J. Phys. Colloques 42 (1981) C4-193-C4-196
DOI: 10.1051/jphyscol:1981439
1 Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, U.S.A.
2 Energy Conversion Devices, Troy, Michigan 48048, U.S.A.
J. Phys. Colloques 42 (1981) C4-193-C4-196
DOI: 10.1051/jphyscol:1981439
INTRINSICALLY BROKEN CHALCOGEN CHEMICAL ORDER IN STOICHIOMETRIC GLASSES
W.J. Bresser1, P. Boolchand1, P. Suranyi1 and J.P. de Neufville21 Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, U.S.A.
2 Energy Conversion Devices, Troy, Michigan 48048, U.S.A.
Abstract
The chalcogen site in bulk glasses of GeSe2 and GeS2 has been probed via nuclear quadrupole interactions using 129mTe impurity atoms as parent in 129I Mössbauer emission spectroscopy. Two distinct types of chalcogen sites are observed and are shown to provide direct evidence for intrinsically broken chemical ordering in these network glasses. The compositional dependence of the site parameters in pseudo-binary alloy glasses indicates the presence of characteristic clusters rather than a continuous random network.