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 interface profiles in amorphous spin-orbit torque switching structures
Abstract: Spin-orbit torque-induced (SOT) magnetization switching is an important effect in spintronic applications such as magnetic random access memories, and spin logic devices. It is a very active topic of research and a number of different materials systems have been studied. SOT switching devices are layered structures composed of a thin magnetic layer (M) such as TbCo adjacent to a polycrystalline heavy metal (HM) layer such as Pt, Ta or W. The heavy metal layer is used to supply a spin current which generates the torque to switch the magnetic layer. A figure of merit for SOT switching is the switching efficiency which depends on the properties of the HM and the spin transport across the interface. The interface between the two layers is therefore critical. At the interface between a magnetic and non-magnetic material it is known that a magnetization can be induced in the non-magnetic material and this is known as the magnetic proximity effect. Despite its importance the magnetic proximity effect is often not considered in SOT switching studies. The objective is to determine the magnetization profile of HM|M multilayers with PNR measurements, with WSi, TaSi, and Pt as the HM and CoAlZr as the magnetic layer. This will allow us to determine whether the magnetic interfaces are sharp or whether the magnetization varies smoothly across the interface into the HM layer due to the magnetic proximity effect.
Principal Investigator: Mr Ásgeir Tryggvason
Local Contact: Dr Andrew Caruana
Experimenter: Dr Fridrik Magnus
Experimenter: Professor Snorri Ingvarsson
DOI: 10.5286/ISIS.E.RB2510443
ISIS Experiment Number: RB2510443
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2510443-1 | POLREF | 21 May 2028 | 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:
Mr Ásgeir Tryggvason et al; (2025): Magnetic interface profiles in amorphous spin-orbit torque switching structures, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510443
Data is released under the CC-BY-4.0 license.
