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Chemical order in GexAsySe1-x-y glasses probed by high resolution X-ray photoelectron spectroscopy

Xu, S. W.; Wang, R. P.; Luther-Davies, B.; Kovalskiy, A.; Miller, A. C.; Jain, H.

Description

We have measured high-resolution x-ray photoelectron spectra of Ge xAsySe1-x-y glasses with a mean coordination number (MCN) from 2.2 to 2.78. The valence band spectra showed that a number of Se–Se–Se trimers can be found in Se-rich samples, whilst multiband features induced by phase separation can be observed in extremely Se-poor samples. When the Ge, As, and Se 3d spectra were decomposed into several doublets, which correspond, respectively, to different chemical environments, the perfect...[Show more]

CollectionsANU Research Publications
Date published: 2014-02-28
Type: Journal article
URI: http://hdl.handle.net/1885/16032
Source: Journal of Applied Physics
DOI: 10.1063/1.4867397

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