ISIS Neutron and Muon Source Data Journal

CANADIAN: Polarized neutron reflectometery of MnGe thin film in in-plane magnetic fields

Abstract: MnGe is a chiral magnetic material that potentially possesses multiple interesting topological states. Although the cubic B20 phase is not thermodynamically stable in bulk form, single orientation films can be grown on Si substrates. The in-plane magnetic phase diagram is not fully understood. We proposed to use polarized neutron reflectometery to measure the magnetic structure of high-quality MnGe films grown by molecular beam epitaxy on Si(111) substrates to reveal the structure of an unidentified phase in a pocket near the magnetic ordering temperature, which may correspond to 2-dimensional topological structures known as skyrmions. We will investigate how finite size effects affect the competition between helicoids and skyrmions and potentially find evidence for a novel chiral interaction predicted to exist in MnGe.

Public release date: 24 November 2026

Principal Investigator: Professor Theodore Monchesky
Local Contact: Dr Andrew Caruana
Experimenter: Mr Brett MacNeil
Experimenter: Dr Murray Wilson
Experimenter: Dr Christy Kinane

DOI: 10.5286/ISIS.E.RB2300066-1

Parent DOI: 10.5286/ISIS.E.RB2300066

ISIS Experiment Number: RB2300066

Part Number: 1

Date of Experiment: 20 November 2023

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 Theodore Monchesky et al; (2023): CANADIAN: Polarized neutron reflectometery of MnGe thin film in in-plane magnetic fields, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2300066-1

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