ISIS Neutron and Muon Source Data Journal

Spin wave excitations in the 2D honeycomb ferromagnets

Abstract: Graphene is the single layer of honeycomb-shaped carbon network, for which 2010 Nobel Prize in Physics was awarded thanks to its novel electronic properties. One of such novelties is the particles carrying an electrical charge but zero mass. In this work, we are going to investigate the quantum particles carrying magnetic field but zero charges on magnetic materials that have similar structures as graphene, namely CrI3 and Cr2Ge2Te6. In them, magnetic moments of Cr3+ ions align on honeycomb-shaped lattices and produce these "magnons" via cooperative oscillations. We will use inelastic neutron scattering method to observe the energy of such magnons as a function of neutron momentum transfer. We will be then able to estimate the bonding strength between electronic magnetic moments by analyzing the spectra, which may eventually reveal the existence of such massless magnetic particles.

Principal Investigator: Professor Pengcheng Dai
Experimenter: Dr Helen Walker
Experimenter: Dr Bin Gao
Experimenter: Dr Lebing Chen
Local Contact: Dr Russell Ewings
Experimenter: Professor Jae-Ho Chung
Experimenter: Mr Tong Chen

DOI: 10.5286/ISIS.E.RB1820251

ISIS Experiment Number: RB1820251

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:
Professor Pengcheng Dai et al; (2018): Spin wave excitations in the 2D honeycomb ferromagnets, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820251

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