High-pressure X-ray diffraction study on alpha-PbF2

Ehm, Lars, Knorr, Karsten, Madler, F., Voigtländer, Henning, Busetto, E., Cassetta, A., Lausi, A. and Winkler, B. (2003) High-pressure X-ray diffraction study on alpha-PbF2 Journal of Physics and Chemistry of Solids, 64 (6). pp. 919-925. DOI 10.1016/s0022-3697(02)00437-7.

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Abstract

The high-pressure behaviour of alpha-PbF2 was investigated by angular-dispersive synchrotron X-ray powder diffraction up to 6.55(8) GPa. The fit of a third-order Birch-Murnaghan equation-of-state gave the volume at zero pressure V-0 = 194.14(4)Angstrom(3) and the bulk modulus b(0) = 47.0(6) GPa with the pressure derivative b' = 7.9(4). The continuous-symmetry-measure approach has been used for the quantification of the distortion of the coordination polyhedron in alpha-PbF2 revealing an increasing distortion with pressure. (C) 2003 Elsevier Science Ltd. All rights reserved.

Document Type: Article
Keywords: high pressure X-ray diffraction inorganic compounds powder diffraction ax(2) compounds pbf2 phases polyhedra fluoride software behavior crystal
Research affiliation: Kiel University
DOI etc.: 10.1016/s0022-3697(02)00437-7
ISSN: 0022-3697
Date Deposited: 24 Jan 2012 05:07
Last Modified: 09 Oct 2012 03:56
URI: http://eprints.uni-kiel.de/id/eprint/16182

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