ISIS Neutron and Muon Source Data Journal

Magnetic field tuning of dynamic spin orbit effects in a honeycomb magnet

Abstract: This is a continuation proposal to probe the magnetic excitations in a Fe-based stacked honeycomb magnet in applied magnetic field. In recent zero-field LET measurements we observed evidence for strong spin-orbit effects manifested in anomalous intensity modulations at low energies attributed to a mixed spin-orbital character of the magnetic moments and gap openings, both at the inter-layer zone boundary and also where Dirac magnon cones are present at the corners of the in-plane hexagonal Brillouin zone. Here we propose to measure the excitations as a function of applied field that drive a transition above 8 T to a phase where the ground-state spin-orbital admixture changes, in order to further probe the spin-orbit effects on the cooperative dynamics and constrain the exchange Hamiltonian.

Principal Investigator: Professor Radu Coldea
Experimenter: Dr Dharmalingan Prabhakaran
Experimenter: Dr Paul McClarty
Local Contact: Dr Ross Stewart
Experimenter: Miss Miska Elliot

DOI: 10.5286/ISIS.E.RB1920660

ISIS Experiment Number: RB1920660

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 Radu Coldea et al; (2020): Magnetic field tuning of dynamic spin orbit effects in a honeycomb magnet, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920660

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