ISIS Neutron and Muon Source Data Journal

Magnetic structure and spin excitations in the magnetic Weyl heavy fermion compound CeBi2

Abstract: CeBi2 is a new magnetic Weyl heavy fermion compound which demonstrates the Kondo-type behaviour. It undergoes a transition to a complex antiferromagnetic ground state, and on theapplication of a magnetic field, a ferromagnetic-like state appears. Also, the magnetoresistancebehaviour of CeBi2 suggests the existence of non-trivial topological surface states (TSS) with aninverted band gap. So far, the spin dynamics of this magnetic Weyl semimetal are not explored byinelastic neutron scattering yet. Here we propose to investigate the anomalous spin excitations,especially linear Bosonic dispersion, related to the topological physics and spin-orbital coupling ofCeBi2 by inelastic neutron scattering experiments at the LET/MERLIN spectrometer. We will usesingle crystals of CeBi2 with dimensions of 6 x 2 x 1 mm.

Principal Investigator: Dr Pabitra Biswas
Local Contact: Dr Devashi Adroja
Experimenter: Dr Saumya Mukherjee
Experimenter: Dr Jhuma Sannigrahi
Experimenter: Dr Adrian Hillier

DOI: 10.5286/ISIS.E.RB1910558

ISIS Experiment Number: RB1910558

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 Pabitra Biswas et al; (2019): Magnetic structure and spin excitations in the magnetic Weyl heavy fermion compound CeBi2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910558

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