Lufaso, M.
, Schulze, W.
, Misture, L.
and Vanderah, T.
(2007),
Crystal Structure, Magnetic, and Dielectric Properties of Aurivillius-Type Bi<sub>3</sub>Fe<sub>0.5</sub>Nb<sub>1.5</sub>O<sub>9</sub>, Journal of Solid State Chemistry (Accessed May 11, 2026)
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Crystal Structure, Magnetic, and Dielectric Properties of Aurivillius-Type Bi3Fe0.5Nb1.5O9
Published
Author(s)
, W A. Schulze, L Misture,
Abstract
Bi3Fe0.5Nb1.5O9 was synthesized using conventional solid state techniques and its crystal structure refined by the Rietveld method using neutron powder diffraction data. The oxide adopts an Aurivillius-type structure with orthorhombic space group symmetry A21am. Fe and Nb are disordered on the same crystallographic site, within [(Fe,Nb)O6] octahedra which exhibit tilting and distortion to accommodate the bonding requirements of the Bi cations located in the perovskite double layers. The structural behavior is discussed using a bond valence analysis. Magnetic measurements indicate paramagnetic behavior down to 4 K. Measurements of dielectric properties and electrical resistivity exhibited changes near 250 C to 260 C which suggest a possible ferroelectric transition.Citation
Journal of Solid State Chemistry
Volume
180
Issue
10
Pub Type
Journals
Keywords
Aurivillus, crystal structure, dielectric properties, magnetic properties, polar
Citation
Issues
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Created October 28, 2007, Updated February 19, 2017