ISIS Neutron and Muon Source Data Journal

The origin of high oxide-ion conductivity and the nature of the intermediate phase in Bi4Ti3O12

Abstract: 4 days of beam time is requested on HRPD to study the crystal chemistry of the ferroelectric Aurivillius phase Bi4Ti3O12 (Curie Temperature, Tc ~ 675 C, mixed conductor) and a Nb-doped composition (Tc ~ 670 C, dielectric) Bi4Ti2.95Nb0.05O12. The purpose of this experiment is to acquire ND data from 300 to 1000 K to establish accurate crystallographic information related to the changes in polymorphism (including a poorly defined intermediate phase that exists near Tc) and defect chemistry by Nb-doping. Unpublished electrical data and O18 diffusion measurements show Bi4Ti3O12 to have unexpected high levels of oxide-ion conductivity. Understanding the structural origin and conduction mechanism will inform future compositional studies on how to optimise either the oxide-ion conducting (electrolyte) or ferroelectric (insulating) properties of a variety of energy/memory applications.

Principal Investigator: Professor Derek Sinclair
Experimenter: Dr Fan Yang
Experimenter: Mr Patrick Wu
Experimenter: Dr Whitney Schmidt
Local Contact: Dr Ivan da Silva Gonzalez
Experimenter: Dr Lin Hao Li

DOI: 10.5286/ISIS.E.RB1620186

ISIS Experiment Number: RB1620186

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Derek Sinclair et al; (2016): The origin of high oxide-ion conductivity and the nature of the intermediate phase in Bi4Ti3O12, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620186

Data is released under the CC-BY-4.0 license.