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Chemical and medium-range orders in As2S3 glass

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Title: Chemical and medium-range orders in As2S3 glass
Authors: Tanaka, Keiji1 Browse this author →KAKEN DB
Authors(alt): 田中, 啓司1
Issue Date: 15-Dec-1987
Publisher: American Physical Society
Journal Title: Physical Review B
Volume: 36
Issue: 18
Start Page: 9746
End Page: 9752
Publisher DOI: 10.1103/PhysRevB.36.9746
Abstract: Structures and optical-absorption edges of As2S3 glasses prepared by quenching at various temperatures have been studied. Raman scattering spectra show that the medium-range order decreases in the specimens rapidly quenched from temperatures higher than the glass-transition temperature, and that in the samples quenched from the vapor phase the homopolar-bond density is substantially increased. The medium-range order is recovered with annealing at the glass-transition temperature, and in contrast, for lessening the homopolar bonds and improving the chemical order, annealing at temperatures higher than the melting temperature is required. Increases in the structural disorders accompany red shifts of the optical-absorption edge and decreases in the slope of the Urbach tail.
Rights: Copyright © 1987 American Institute of Physics
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 田中 啓司

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