New insights into BaTi1–xSnxO3 (0 ≤ x ≤ 0.20) phase diagram from neutron diffraction data

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dc.contributor.authorVeselinović, Len_AU
dc.contributor.authorMitrić, Men_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorMarković, Sen_AU
dc.contributor.authorUskoković, Den_AU
dc.date.accessioned2021-02-10T21:58:28Zen_AU
dc.date.available2021-02-10T21:58:28Zen_AU
dc.date.issued2016-01-01en_AU
dc.date.statistics2021-01-23en_AU
dc.description.abstractNeutron powder diffraction (NPD) was employed to further investigate the BaTi1−xSnxO3 (BTS) system previously studied by X-ray diffraction. The room-temperature phase compositions and crystal structures of BTS samples with x = 0, 0.025, 0.05, 0.07, 0.10, 0.12, 0.15 and 0.20 were refined by the Rietveld method using NPD data. It is well known that barium titanate powder (x = 0) crystallizes in the tetragonal P4mm space group. The crystal structures of the samples with 0.025 ≤ x ≤ 0.07 were refined as mixtures of P4mm and Amm2 phases; those with x = 0.1 and 0.12 show the coexistence of rhombohedral R3m and cubic phases, while the samples with x = 0.15 and 0.20 crystallize in a single cubic Pm{\overline 3}m phase. Temperature-dependent NPD was used to characterize the BaTi0.95Sn0.05O3 sample at 273, 333 and 373 K, and it was found to form single-phase Amm2, P4mm and Pm{\overline 3}m structures at these respective temperatures. The NPD results are in agreement with data obtained by differential scanning calorimetry and dielectric permittivity measurements, which show a paraelectric–ferroelectric transition (associated with structural transition) from Pm{\overline 3}m to P4mm at about 353 K followed by a P4mm to Amm2 phase transition at about 303 K. © International Union of Crystallographyen_AU
dc.identifier.citationVeselinović, L., Mitrić, M., Avdeev, M., Marković, S., & Uskoković, D. (2016). New insights into BaTi1–xSnxO3 (0 ≤ x ≤ 0.20) phase diagram from neutron diffraction data. Journal of Applied Crystallography, 49(5), 1726-1733. doi:10.1107/S1600576716013157en_AU
dc.identifier.issn1600-5767en_AU
dc.identifier.issue5en_AU
dc.identifier.journaltitleJournal of Applied Crystallographyen_AU
dc.identifier.pagination1726-1733en_AU
dc.identifier.urihttps://doi.org/10.1107/S1600576716013157en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10350en_AU
dc.identifier.volume49en_AU
dc.language.isoenen_AU
dc.publisherInternational Union of Crystallographyen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectCrystal structureen_AU
dc.subjectBariumen_AU
dc.subjectTitanatesen_AU
dc.subjectPhase transformationsen_AU
dc.subjectElectrical propertiesen_AU
dc.titleNew insights into BaTi1–xSnxO3 (0 ≤ x ≤ 0.20) phase diagram from neutron diffraction dataen_AU
dc.typeJournal Articleen_AU
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