ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Multiferroic interfaces in BiFeO3-PbTiO3/ferromagnet bilayers for efficient memory devices
Abstract: Ferroelectrics are promising candidates for energy-efficient electronic devices in future information technologies owing to their non-volatile and low-energy operation of spontaneous electric polarisation. xBiFeO -(1-x)PbTiO (BFPT) is a ferroelectric perovskite for all values of x, and antiferromagnetic at certain values of x. The material properties depend on the crystal symmetry, which in turn depends on the ratio of BiFeO to PbTiO .For x > 0.7, the crystal structure is rhombohedral (R), with the ferroelectric saturation polarisation (Ps) // [111], while for x < 0.7 it is tetragonal (T), with Ps // [001]. At room temperature, the R phase is G-type antiferromagnetic, while the T phase is paramagnetic. At x=0.7, BFPT exhibits a morphotropic phase boundary (MPB) between T and R structures, accompanied by an enhancement in the ferroelectric properties. The MPB allows us to switch between antiferromagnetic and paramagnetic behaviour with applied stress or electric field. We wish to understand why the exchange bias changes as a function of composition. Previous VSM and PNR results indicate this is to do with diffusion in the layers and changes at the interface between the FM and BFPT.
Principal Investigator: Miss Mae Jankowski
Experimenter: Dr Sehwan Song
Experimenter: Dr Matthew Rogers
Experimenter: Dr Philippa Shepley
Local Contact: Dr Christy Kinane
Experimenter: Dr Thomas Moore
DOI: 10.5286/ISIS.E.RB2610459
ISIS Experiment Number: RB2610459
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2610459-1 | POLREF | 25 September 2029 | Download |
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:
Miss Mae Jankowski et al; (2026): Multiferroic interfaces in BiFeO3-PbTiO3/ferromagnet bilayers for efficient memory devices, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2610459
Data is released under the CC-BY-4.0 license.
