Dynamics from diffraction

Goodwin, A. L. and Tucker, A. G. and Dove, M. T. and Keen, D. A. (2005) Dynamics from diffraction. Acta Crystallographica Section A, 61 (Supple). pp. 434-435.

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A model-independent approach for the extraction of detailed lattice dynamical information from neutron powder diffraction data is described. The technique is based on a statistical analysis of atomistic configurations generated using reverse Monte Carlo structural refinement. Phonon dispersion curves extracted in this way are shown to reproduce many of the important features found in those determined independently using neutron triple-axis spectroscopy. The extent to which diffraction data are sensitive to lattice dynamics is explored in a range of materials. The prospect that such detailed dynamical information might be accessible using comparatively facile experiments such as neutron powder diffraction is incredibly valuable when studying systems for which established spectroscopic methods are prohibitive or inappropriate.

Item Type: Article
Uncontrolled Keywords: 2006 AREP IA50 2005 P
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Acta Crystallographica Section A
Volume: 61
Page Range: pp. 434-435
Depositing User: Sarah Humbert
Date Deposited: 09 May 2011 10:58
Last Modified: 23 Jul 2013 09:58
URI: http://eprints.esc.cam.ac.uk/id/eprint/1657

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