Structure of rare-earth chalcogenide glasses by neutron and x-ray diffraction

James W E Drewitt, Philip S Salmon, Anita Zeidler, Chris J Benmore, Alex C Hannon

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The method of neutron diffraction with isomorphic substitution was used to measure the structure of the rare-earth chalcogenide glasses [Formula: see text](Ga2 X 3)0.33(GeX 2)0.60 with [Formula: see text] or Ce and [Formula: see text] or Se. X-ray diffraction was also used to measure the structure of the sulphide glass. The results are consistent with networks that are built from GeX 4 and GaX 4 tetrahedra, and give R-S and R-Se coordination numbers of 8.0(2) and 8.5(4), respectively. The minimum nearest-neighbour R-R distance associated with rare-earth clustering is discussed.

Original languageEnglish
Pages (from-to)225703
JournalJournal of physics. Condensed matter : an Institute of Physics journal
Issue number22
Publication statusPublished - 28 Apr 2017



  • Journal Article

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