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.
Magnetic depth profiling of Fe3O4/SrTiO3 heterostructures to reveal dynamics of interfacial switching
Abstract: Controlling the oxide interfaces is the key towards controlling the switching phenomenon and thus realizing functional devices. We found that oxide substrates can take an active part in the redox process at the interface and may be even used to tune properties. Hence, our next goal is to real-time monitor the redox reactions at the interface when the properties or "iron oxide phases" of the interfaces and the films are tuned. We have characterized our samples using different lab techniques, e.g. XRR, XRD, SQUID and GISAXS, or using large scale X-ray facilities, e.g. HAXPES and XMCD. Using SQUID, we observe the disappearance of Verwey transition, the characteristic temperature for Fe3O4, when applying a positive voltage. This indicates a perturbation of oxygen content in the Fe3O4 phase and possible switching to the insulator gamma-Fe2O3 phase at the interface. Thus, our next step is to monitor in-situ the magnetic depth profiling when applied electric field using polarized neutron reflectivity in order to real-time monitor the thickness and the composition of the intralayer.
Public release date: 27 July 2027
Principal Investigator: Dr Mai Hussein Hamed
Experimenter: Dr Christy Kinane
Experimenter: Mr Chenyang Yin
Local Contact: Dr Andrew Caruana
Experimenter: Dr Connie Bednarski-Meinke
Experimenter: Ms Yifan Xu
DOI: 10.5286/ISIS.E.RB2310487-2
Parent DOI: 10.5286/ISIS.E.RB2310487
ISIS Experiment Number: RB2310487
Part Number: 2
This dataset is NOT yet publicly available.
The release date is: 27 July 2027
download
the dataset
Date of Experiment: 22 July 2024
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:
Dr Mai Hussein Hamed et al; (2024): Magnetic depth profiling of Fe3O4/SrTiO3 heterostructures to reveal dynamics of interfacial switching, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310487-2
Data is released under the CC-BY-4.0 license.
