ISIS Neutron and Muon Source Data Journal

Magnetic Structure Evolution in a Giant Anomalous Hall Effect Compound NdGaSi

Abstract: Here, we investigate a new electron correlation metallic compound NdGaSi using transportation measurements and first-principles DFT. We find an anomalous Hall conductivity reaching approximately 1400 -1 cm-1 break the record that reported for the prototypical magnetic Weyl semimetal Co3Sn2S2. This giant anomalous Hall effect origin from quasi-flat f-electron bands, as suggested by density functional theory calculations. Magnetization, heat capacity and resistivity measured two magnetic phase transitions. However, the corresponding magnetic structures are unknow yet, which is a critical piece of information for a comprehensive understanding of its physical properties, such as the complex interplay among electron correlations, Weyl fermions, and magnetism. Thus, we propose to study the magnetic structure evolution as a function of temperature in NdGaSi single crystal at SXD at ISIS.

Principal Investigator: Professor Xiyang Li
Experimenter: Dr Meng Lyu
Local Contact: Dr Silvia Capelli
Experimenter: Professor Fangwei Wang
Experimenter: Dr Matthias Gutmann
Experimenter: Dr Enke Liu

DOI: 10.5286/ISIS.E.RB2610106

ISIS Experiment Number: RB2610106

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 Xiyang Li et al; (2026): Magnetic Structure Evolution in a Giant Anomalous Hall Effect Compound NdGaSi, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2610106

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