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.
Temperature Dependent Magnetic Structures in Fe/Gd Films
Abstract: Chiral magnetic phases are of significant interest due to their potential low energy, nonvolatile applications in spintronic devices. The proposed system, Fe/Gd multilayers, hosts magnetic, labyrinth / stripe domain and skyrmion chiral phases, and has been characterized by many techniques, including small angle neutron diffraction (SANS). In Fe/Gd multilayers, the stability of the chiral phases is a result of competing dipolar fields and exchange energy, producing an equal population of chiral spin textures with opposite helicity. By introducing Pt/ Ir heavy metals (HMs) into the structure, an additional energy from the interfacial Dzyaloshinkii-Moriya Interaction (DMI) can be introduced, leading to a preferential chirality in the spin textures. Here, we propose using polarized SANS to explore the net chirality through the volume of Fe/Gd multilayers with HMs in labyrinth domain states, which is expected to lead to intensity asymmetry in the resulting Bragg peaks. Preliminary Lorentz microscopy results provide evidence of this preferred chirality and that at temperatures below 180 K, more complex chiral phases exist. Additionally, exploration of the magnetic field (H) - temperature (T) phase space is proposed, which will be compared to Fe/Gd with no HMs. The process of annihilating domains is expected to show a strong dependence on the net chirality of the domain walls, and H-T phase space analyswill help build an understanding of how the DMI contributes to magnetic reversal.
Principal Investigator: Mr Christopher James Jensen
Local Contact: Dr Dirk Honecker
Experimenter: Dr Julie Borchers
DOI: 10.5286/ISIS.E.RB2420460
ISIS Experiment Number: RB2420460
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2420460-1 | ZOOM | 11 March 2028 | 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:
Mr Christopher James Jensen et al; (2025): Temperature Dependent Magnetic Structures in Fe/Gd Films, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2420460
Data is released under the CC-BY-4.0 license.
