ISIS Neutron and Muon Source Data Journal

Probing the magnetic interface in Bi2Se3/CoFeB bilayers by polarized neutron reflectometry

Abstract: Topological insulators (TIs) are quantum materials having insulating properties in bulk, but display gapless conducting surface states. These conducting surface electronic states are protected by time reversal symmetry. The spin of electron is locked to its momentum direction, which is the origin of the very high spin orbit coupling. These unique features make them potential for future electronic and spintronics devices. Magnetic proximity effect is a way to induce magnetism into TIs through spin transfer at the interface via exchange coupling. The room temperature magnetism induction in TIs by proximity effect using different magnetic materials needs to be further explored. Polarized neutron reflectivity (PNR) is a depth sensitive technique to quantify the interface magnetism. Here, we propose the study of interface magnetism induced in Bi2Se3 by the ferromagnetic CoFeB by PNR.

Principal Investigator: Dr Subhankar Bedanta
Experimenter: Miss Purbasha Sharangi
Experimenter: Dr Braj Bhusan Singh
Local Contact: Dr Andrew Caruana

DOI: 10.5286/ISIS.E.RB1810586

ISIS Experiment Number: RB1810586

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 Subhankar Bedanta et al; (2018): Probing the magnetic interface in Bi2Se3/CoFeB bilayers by polarized neutron reflectometry, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810586

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