ISIS Neutron and Muon Source Data Journal

Understanding pressure-driven structural and magnetic properties in LaFeO3

Abstract: This proposal is concerned with determining variations in the high pressure crystallographic and magnetic structure of LaFeO3. LaFeO3 is a characteristic example of ferrite-oxide perovskite-like material and is the parent compound for materials applied in fuel cell cathodes, chemical sensors and catalysts. At ambient conditions LaFeO3 is an insulator which crystallises in the Pbmn space group. This ortho-ferrite compound exhibits antiferromagnetism (TN 735 K), and magnetic interactions result from exchange interaction between Fe-O-Fe atoms. Upon temperature the compound exhibits a transition to higher symmetry at ~1228K as shown by x-ray diffraction experiments. At high pressure, an x-ray diffraction study reports a structural transition to cubic symmetry at a pressure of 21.1GPa, but no evidence of an intermediate R-3c symmetry has been reported.

Principal Investigator: Dr Craig Bull
Experimenter: Dr Malcolm Guthrie
Experimenter: Dr Christopher Ridley
Experimenter: Miss Mara Capone
Experimenter: Dr Nicholas Funnell

DOI: 10.5286/ISIS.E.RB1920055

ISIS Experiment Number: RB1920055

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:
Dr Craig Bull et al; (2019): Understanding pressure-driven structural and magnetic properties in LaFeO3, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920055

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