ANSTO Publications Online >
Journal Publications >
Journal Articles >

Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/1377

Title: An investigation of the structural dynamics in the fast ionic conductor Cu2-delta Se using neutron scattering.
Authors: Danilkin, SA
Keywords: Crystal Structure
Cations
Diffraction
Copper Selenides
Temperature Range
Scattering
Issue Date: 7-Jan-2009
Publisher: Elsevier
Citation: Danilkin, S. A. (2009). An investigation of the structural dynamics in the fast ionic conductor Cu2-delta Se using neutron scattering. Journal of Alloys and Compounds, 467(1-2), 509-513.
Abstract: Energy resolved neutron diffraction measurements were performed on Cu1.75Se and Cu1.98Se samples for both α- and β-phases. In-situ measurements of the Cu1.98Se compound during heating show that the β-α phase transition takes place at 420K and has noticeable temperature hysteresis. In addition to Bragg reflections, the diffraction patterns of the α-Cu1.75Se at RT and α-Cu1.98Se at 435 K samples taken in conventional two-axis geometry show a broad maximum related to diffuse scattering. This diffuse background is suppressed in the energy resolved experiment which indicates a strong contribution from inelastic scattering coming from correlated thermal displacements of the ions in the super-ionic phase. On the other hand, the diffraction pattern of the non super-ionic β-phase shows only minor differences between spectra measured with and without the analyser crystal. © 2007, Elsevier Ltd.
URI: http://dx.doi.org/10.1016/j.jallcom.2007.12.064
http://apo.ansto.gov.au/dspace/handle/10238/1377
ISSN: 0925-8388
Appears in Collections:Journal Articles

Files in This Item:

There are no files associated with this item.

Items in APO are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback