The ferroelectric phase of CdTiO3. A powder neutron diffraction study.
Access status:
Open Access
Type
ArticleAbstract
The synthesis of bulk samples of polycrystalline CdTiO3 in both the rhombohedral ilmenite and orthorhombic perovskite forms is described and the structures of these have been refined using powder neutron diffraction data. This involved the preparation of samples enriched in Cd-114. ...
See moreThe synthesis of bulk samples of polycrystalline CdTiO3 in both the rhombohedral ilmenite and orthorhombic perovskite forms is described and the structures of these have been refined using powder neutron diffraction data. This involved the preparation of samples enriched in Cd-114. Cooling perovskite-type CdTiO3 to 4 K induces a ferroelectric phase transition, with the neutron data suggesting the low temperature structure is in Pna21. Mode analysis shows the polar mode to be dominant at low temperatures. The ilmenite-structure of CdTiO3 is compared with that of ZnTiO3. The refined scattering length of the Cd-114 is estimated to be 5.56 fm.
See less
See moreThe synthesis of bulk samples of polycrystalline CdTiO3 in both the rhombohedral ilmenite and orthorhombic perovskite forms is described and the structures of these have been refined using powder neutron diffraction data. This involved the preparation of samples enriched in Cd-114. Cooling perovskite-type CdTiO3 to 4 K induces a ferroelectric phase transition, with the neutron data suggesting the low temperature structure is in Pna21. Mode analysis shows the polar mode to be dominant at low temperatures. The ilmenite-structure of CdTiO3 is compared with that of ZnTiO3. The refined scattering length of the Cd-114 is estimated to be 5.56 fm.
See less
Date
2011-01-01Publisher
ElsevierCitation
Brendan J. Kennedy, Qingdi Zhou, Maxim Avdeev. The ferroelectric phase of CdTiO3: A powder neutron diffraction study, Journal of Solid State Chemistry,Volume 184, Issue 11,2011,Pages 2987-2993,ISSN 0022-4596, https://doi.org/10.1016/j.jssc.2011.08.028.Subjects
PerovskiteShare