ISIS Neutron and Muon Source Data Journal

Neutron diffraction characterization of gallium ferrite thin films

Abstract: Ga2-xFexO3 (GFO) is a ferrimagnetic magnetoelectric material presenting a Curie temperature above room temperature for x>1.3. It is therefore an interesting candidate for the realization of magnetoelectric memories ME-RAMs. We have performed coupled SQUID magnetometry and XMCD measurements on GFO thin films and evidenced a coinciding minimum in the magnitudes of Hc and ML. A similar behaviour is described in the literature for the isostructural compound epsilon-Fe2O3, and explained by a lattice distortion accompanying a commensurate to incommensurate magnetic transition. This transition has however never been evidenced in bulk for GFO. We therefore wish to perform a coupled neutron diffraction and 57Fe Mössbauer spectroscopy study of the magnetic structure of 57Fe-enriched GFO thin films in order to determine whether GFO thin films present a lattice distortion driven magnetic transition.

Principal Investigator: Professor Nathalie VIART
Experimenter: Dr Christophe Lefevre
Experimenter: Mr Florian APPERT
Experimenter: Dr Pascal Manuel
Experimenter: Dr Jean Juraszek

DOI: 10.5286/ISIS.E.RB1620145

ISIS Experiment Number: RB1620145

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

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

For Example:
Professor Nathalie VIART et al; (2016): Neutron diffraction characterization of gallium ferrite thin films, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620145

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