ISIS Neutron and Muon Source Data Journal

Probing the Spin-dynamics in an Altermagnetic Candidate

Abstract: Altermagnetism which features vanishing net magnetization and time-reversal symmetry broken electronic structures has been identified to be the third ground state of collinear magnetism. Similar to the electronic structure, the degeneracy of magnon bands with opposite chirality is predicted to be lifted. Probing the chiral splitting magnon band would be a direct experimental verification of an altermagnetic phase. MnTe with a hexagonal NiAs-type structure is an altermagnetic candidate. Previous study of MnTe has reported observation of a spontaneous anomalous Hall effect and the spin-split electronic structure revealed by angle-resolved photoemission spectroscopy. However, direct verification of altermagnetic states via neutron spectroscopic methods, e.g., measuring the chiral-split magnon bands by inelastic neutron scattering (INS), is still lacking. Therefore, INS data is imperatively needed.

Public release date: 21 March 2028

Principal Investigator: Professor Jinsheng Wen
Experimenter: Mr Shuai Dong
Experimenter: Dr Yanyan Shangguan
Experimenter: Dr Song Bao
Experimenter: Mr ZHENTAO Huang
Experimenter: Mr Hao Xu
Local Contact: Dr Travis Williams
Experimenter: Mr Bo Zhang
Experimenter: Mr Junbo Liao
Experimenter: Mr Shufan Cheng

DOI: 10.5286/ISIS.E.RB2420108-1

Parent DOI: 10.5286/ISIS.E.RB2420108

ISIS Experiment Number: RB2420108

Part Number: 1

Date of Experiment: 19 March 2025

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 Jinsheng Wen et al; (2025): Probing the Spin-dynamics in an Altermagnetic Candidate, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2420108-1

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