title: Intermediate-range order in permanently densified GeO2 glass.
abstract: Information about the partial structure factors of densified GeO2 glass has been obtained from neutron and x-ray diffraction measurements. Densification causes a reduction in the length scale of the intermediate range order (IRO). The difference structure factors obtained by combining the x-ray and neutron data so as to eliminate one partial structure factor at a time shows the greatest effects when the Ge-Ge correlations are eliminated and least when O-O correlations are eliminated. This implies that the reduced length scale results from a decrease in the next-nearest neighbor Ge-O and O-O distance caused by a rotation about the Ge-O-Ge bonds and a distortion of the GeO4 tetrahedra.
authors.affiliation: University of Wyoming, Department of Chemistry, Laramie, Wyoming 82071-3838, USA.
authors.forename: S
authors.initials: S
authors.lastname: Sampath
authors.forename: C J
authors.initials: CJ
authors.lastname: Benmore
authors.forename: K M
authors.initials: KM
authors.lastname: Lantzky
authors.forename: J
authors.initials: J
authors.lastname: Neuefeind
authors.forename: K
authors.initials: K
authors.lastname: Leinenweber
authors.forename: D L
authors.initials: DL
authors.lastname: Price
authors.forename: J L
authors.initials: JL
authors.lastname: Yarger