Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/37511
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | A neutron and x-ray diffraction study of the structure of Nd phosphate glasses |
Author: | Hoppe, U. Ebendorff-Heidepriem, H. Neuefeind, J. Bowron, D. |
Citation: | Zeitschrift fur Naturforschung A, 2001; 56a(3-4):237-243 |
Publisher: | Verlag Z Naturforsch |
Issue Date: | 2001 |
ISSN: | 0932-0784 1865-7109 |
Statement of Responsibility: | Uwe Hoppe, Heike Ebendorff-Heidepriem, Neuefeind, and Daniel T. Bowron |
Abstract: | <jats:title>Abstract</jats:title> <jats:p> Diffraction experiments were performed on two (Nd<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>)<jats:sub>x</jats:sub>(P<jats:sub>2</jats:sub>O<jats:sub>5</jats:sub>)<jats:sub>1- x</jats:sub> glasses for studying the en vironmental order of the Nd<jats:sup>3+</jats:sup> cations. In case of the metaphosphate glass (x = 0.25) a combination of X-ray and neutron diffraction data was used to separate the Nd-O and O-O first neighbor peaks. An Nd-O coordination number of 6.6±0.3 and a mean Nd-O distance of (0.239±0.001) nm were determined. In the ultraphosphate glass studied (x = 0.20) these values increase to 6.9±0.3 and (0.240±0.001) nm where the Nd-0 coordination number is equal to the number of terminal oxygen atoms (O<jats:sub>T</jats:sub>) which are available for coordination of each Nd<jats:sup>3+</jats:sup> cation. This indicates the formation of NdO<jats:sub>n</jats:sub> polyhedra not sharing any O atom where also all O<jats:sub>T</jats:sub>'s are in N d-O<jats:sub>T</jats:sub>-P positions. In the metaphosphate glass the NdO<jats:sub>n</jats:sub> polyhedra have to share some O<jats:sub>T</jats:sub> sites.</jats:p> |
Keywords: | Neutron Scattering X-ray Scattering Short-range Order Phosphate Glasses. |
DOI: | 10.1515/zna-2001-0301 |
Description (link): | http://www.znaturforsch.com/aa/v56a/56a0237.pdf |
Published version: | http://dx.doi.org/10.1515/zna-2001-0301 |
Appears in Collections: | Aurora harvest Physics publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.