ISIS Neutron and Muon Source Data Journal

Combining polarised neutrons and resonant x-rays to understand temperature-dependent interfacial proximity induced polarisation in platinum

Abstract: Despite being a well-known phenomenon, the mechanism by which platinum gains a magnetic moment by proximity to a ferromagnetic (FM) thin film remains unknown. We aim to determine how the magnitude, and spatial extent, of proximity polarisation in Pt relates to the interface magnetisation in an adjacent CoFeTaB (CFTB) FM layer. Setting the Curie temperature of CFTB below room-temperature, we will measure PNR as a function of temperature where the CFTB layer is in either paramagnetic, or at various points in the ferromagnetic phase; each having different magnetisation. The magnetisation in CFTB at the interface will be extracted from fitting temperature dependent PNR measurements to obtain the magnetic scattering length density depth profile. Information on the proximity polarisation in Pt will be extracted from complementary X-ray resonant magnetic scattering measured on the same sample.

Principal Investigator: Dr Aidan Hindmarch
Experimenter: Dr Oto-obong Inyang
Experimenter: Mr Ben Nicholson
Experimenter: Dr Christy Kinane
Experimenter: Dr Del Atkinson
Experimenter: Mr Ariam Mora-Hernández
Experimenter: Dr Kevin Franke

DOI: 10.5286/ISIS.E.RB1620118

ISIS Experiment Number: RB1620118

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:
Dr Aidan Hindmarch et al; (2017): Combining polarised neutrons and resonant x-rays to understand temperature-dependent interfacial proximity induced polarisation in platinum, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620118

Data is released under the CC-BY-4.0 license.