Diffuse scattering in the cesium pyrochlore CsTi0.5W1.5O6

Journal article

The structure of the defect pyrochlore CsTi0.5W1.5O6 has been investigated using electron, synchrotron X-ray and neutron diffraction methods. The material is cubic a = 10.2773 Å with displacive disorder of the Cs cations along the 〈1 1 1〉 direction. The local structure, revealed by the diffuse structure in the electron diffraction patterns shows there is correlated displacement of the heavy Cs atoms along the 〈1 1 0〉 directions. The thermal expansion of the material is also described. © 2008 Elsevier Ltd. All rights reserved.

Authors: Thorogood, G; Saines, P; Kennedy, B; Withers, R; Elcombe, M

• Journal: Materials Research Bulletin
• Volume: 43
• Issue: 4
• Pages: 787-795
• Publication date: 2008-04-01
• DOI: 10.1016/j.materresbull.2007.12.017
• ISSN: 0025-5408
• Language: English
• Keywords: C. Electron diffraction; A. Oxides; D. Thermal expansion; C. X-ray diffraction; C. Neutron scattering