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.
Depth-Resolved Investigation of Magnetic Spin Reorientation in ?-Fe2O3 Thin Films Across the Morin Transition via Polarized Neutron Reflectivity
Abstract: Antiferromagnetic -Fe2O3 exhibits a temperature-driven spin reorientation known as the Morin transition, characterized by a switch of the N el vector from out-of-plane to in-plane alignment. While this transition is well understood in bulk, its behaviour in thin films where interfacial effects and structural distortions become prominent remains elusive. Our previous work demonstrated that film thickness significantly affects the Morin transition temperature and magnetic anisotropy, suggesting a non-uniform spin structure along the film depth. In this proposal, we aim to employ Polarized Neutron Reflectivity (PNR) to achieve angstrom-scale depth profiling of the net magnetic moment in -Fe2O3 thin films with varying thicknesses (23 nm, 75 nm). By performing measurements at 100 K, 200 K, and 300 K under a saturating magnetic field, we will resolve how the N el vector evolves from the substrate interface to the film surface. This study will offer unprecedented insights into depth-dependent spin reorientation phenomena, laying the groundwork for controlling interfacial spin structures in antiferromagnetic spintronic devices.
Principal Investigator: Professor Sungkyun Park
Experimenter: Dr Thomas Moore
Experimenter: Dr Christy Kinane
Local Contact: Dr Andrew Caruana
Experimenter: Dr Sehwan Song
DOI: 10.5286/ISIS.E.RB2610619
ISIS Experiment Number: RB2610619
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2610619-1 | POLREF | 05 October 2029 | Download |
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 Sungkyun Park et al; (2026): Depth-Resolved Investigation of Magnetic Spin Reorientation in ?-Fe2O3 Thin Films Across the Morin Transition via Polarized Neutron Reflectivity, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2610619
Data is released under the CC-BY-4.0 license.
