Neutron diffraction results for three-layer aurivillius phase containing magnetic transition metal cations: Ru (IV), Ir (IV) and Mn (IV)
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Date
2007-02-06
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Australian Institute of Physics
Abstract
The synthesis and characterisation of three-layer Aurivillius-type phases containing magnetic cations M4+ (M = Ru, Ir, Mn), based on the substitution M4+ for Ti4+ in Bi2Sr2(Nb,Ta)2TiO12 has recently been reported [1]. These structures show the partial substitution of Sr2+ for Bi3+ in the [Bi2O2]2+ layers that results in the decrease of M4+ content; the compositions prepared were Bi2-xSr2+x(Nb,Ta)2+xM1-xO12, x ≈ 0.5. This work looks at the neutron diffraction of these samples and shows the existence of a symmetry-lowering mode.
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Keywords
Neutron diffraction, Metals, Cations, Oxides, Oxygen ions, Electric conductivity, Ferroelectric materials, Perovskite, X-ray diffraction
Citation
Sharma, N., Kennedy, B. J., Elcombe, M. M., Avdeev, M., & Ling, C. D. (2007). Neutron diffraction results for three-layer aurivillius phase containing magnetic transition metal cations: Ru (IV), Ir (IV) and Mn (IV). Paper presented at 31st Annual Condensed Matter and Materials Meeting, 6-9 February 2007 Wagga Wagga. Retrieved from https://www.physics.org.au/wp-content/uploads/cmm/2007/cmm071.pdf