ISIS Neutron and Muon Source Data Journal

Magnetic phase transitions in Heusler compounds Fe3-xMnxSi

Abstract: Fe3-xMnxSi has been studied for a long time because of its unusual magnetic properties and complex magnetic phase diagrams. Fe3-xMnxSi (0.7 < x < 1.7) was known to exhibit a ferromagnetic transition, and at a lower temperature another transition to a phase with antiferromagnetic components. Recently we found that when x=1.7 another antiferromagnetic transition occurs at an even lower temperature, that is, there are three magnetic transitions. The two antiferromagnetic transition temperatures have different dependence on magnetic field. Therefore, these phases possibly have unusual magnetic structures and properties, as observed in other Mn-based antiferromagnetic compounds. In this study we will investigate the nature of the transitions and the magnetic phases using muSR measurements. This will reveal peculiar properties of the transitions and antiferromagnetic phases.

Public release date: 18 March 2028

Principal Investigator: Dr Masahiko Hiroi
Experimenter: Miss Ruzanna Binti Yahya
Experimenter: Dr Isao Watanabe
Local Contact: Dr John Wilkinson

DOI: 10.5286/ISIS.E.RB2270015-3

Parent DOI: 10.5286/ISIS.E.RB2270015

ISIS Experiment Number: RB2270015

Part Number: 3

Date of Experiment: 17 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:
Dr Masahiko Hiroi et al; (2025): Magnetic phase transitions in Heusler compounds Fe3-xMnxSi, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2270015-3

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