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Local structure of relaxor ferroelectric SrxBa1-xNb2O6 from a pair distribution function analysis

Pasciak, M.; Ondrejkovic, P; Kulda, J; Vanek, P; Drahokoupil, J; Steciuk, G; Palatinus, L; Welberry, Thomas Richard; Fischer, H E; Hlinka, J; Buixaderas, E


Pair distribution function analysis of neutron-scattering data and of ab initio molecular dynamics results have been employed to study short-range structural correlations and their temperature dependence in a heavily disordered dielectric material SrxBa1-xNb2O6 (x = 0.35, 0.5, and 0.61). Intrinsic disorder caused by a partial occupation of the cationic sites by differently sized Sr and Ba atoms and their vacancies introduces important local strains to the structure and directly influences the...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Physical Review B
DOI: 10.1103/PhysRevB.99.104102
Access Rights: Open Access


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