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Neutron diffuse scattering in deuterated para-terphenyl, C18D14

Goossens, Darren; Beasley, Andrew; Welberry, Thomas; Gutmann, M J; Piltz, R.O


Neutron diffuse scattering is used to explore the short-range order (SRO) in deuterated para-terphenyl, C18D14. The crystal shows SRO because the central of the three phenyl groups of each molecule can twist positively or negatively and these twists are correlated over the local scale. The presence of incipient Bragg peaks at at 200 K shows that these flips are negatively correlated along the a direction (nearest neighbour correlation coefficient of ~–0.3) and b direction (nearest neighbour...[Show more]

CollectionsANU Research Publications
Date published: 2009-02-25
Type: Journal article
Source: Journal of Physics Condensed Matter 21.12 (2009): 124204/1-10
DOI: 10.1088/0953-8984/21/12/124204


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