ISIS Neutron and Muon Source Data Journal

This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.


Investigation of the nature of the magnetic ground state and complex spin dynamics in a Kagome system, single-crystal GdMn6Sn6

Abstract: GdMn6Sn6, a kagome-lattice compound with hexagonal HfFe6Ge6-type structure, offers a fertile ground to study complex magnetism arising from competing intra and interlayer exchange interactions between Gd and Mn sublattices. Neutron diffraction reveals a collinear ferrimagnetic order near 441 K, yet several aspects of its low-temperature behavior remain unresolved. Its structural analog TbMn6Sn6 shows rich spin dynamics and multiple magnetic transitions below its Curie point, raising the possibility of similar hidden phases in GdMn6Sn6. The large magnetic moment and negligible anisotropy of Gd further enhance the likelihood of exotic ground states driven by frustrated interactions. To address this, we propose muon spin relaxation (muSR) measurements to probe the magnetic ground state and spin dynamics. Zero-field muSR will enable the detection of transitions, fluctuation rates, and unconventional phases, thereby advancing understanding of kagome magnetism in layered materials. Previously, we submitted a regular direct access proposal (RB2520335) on this sample, and the reviewers suggested conducting XPRESS measurements, motivating the present proposal.

Principal Investigator: Dr Tathamay Basu
Local Contact: Dr Mark Telling
Experimenter: Dr Devashi Adroja
Experimenter: Mr Sayan Ghosh

DOI: 10.5286/ISIS.E.RB2590233

ISIS Experiment Number: RB2590233

Part DOI Instrument Public release date Download Link
10.5286/ISIS.E.RB2590233-1 HIFI 13 October 2028 Download

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:
Dr Tathamay Basu et al; (2025): Investigation of the nature of the magnetic ground state and complex spin dynamics in a Kagome system, single-crystal GdMn6Sn6, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2590233

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



UKRI


Science and Technology Facilities Council Switchboard: 01793 442000