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.
Magnetic ground state determination of CuSeO3.2H2O via powder neutron diffraction
Abstract: In the past two decades, the renaissance of multiferroics and the experimental discovery of skyrmions in MnSi has generated an explosion of interest in complex magnetic structures, especially for polar and chiral cases. The chalcomenite mineral of formula CuSeO3.2H2O crystallizes in the chiral space group P212121. Susceptibility measurements reveal two anomalies: a broad peak at ~45 K, extending over a temperature range of 20K and likely due to the presence of short range interactions and a sharp peak at TN~26K (also seen in specific heat) signalling the onset of long range magnetic order. The crystal structure is built up from Cu(II) atom connected through the SeO3 bonds to three other copper atoms, giving rise to a compact three dimensional network. From the presence of three exchange coupling paths, a complex magnetic ground state can be anticipated and is indeed seen in our existing neutron data. The Cu...Cu connections through the SeO3 groups along the b-axis likely contribute to the short range order. Due to the intrinsically low magnetic signal of the Cu(II) ions (S=1/2), we apply for 1 days on WISH in powder mode (double frame) to collect data at 1.5K and 50K to unambiguously determine the ground state magnetic structure.
Local Contact: Dr Pascal Manuel
Experimenter: Dr Dmitry Khalyavin
Experimenter: Dr Fabio Orlandi
DOI: 10.5286/ISIS.E.RB2510731
ISIS Experiment Number: RB2510731
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2510731-1 | WISH | 18 May 2029 | Download |
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],
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For Example:
Dr Pascal Manuel et al; (2026): Magnetic ground state determination of CuSeO3.2H2O via powder neutron diffraction, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510731
Data is released under the CC-BY-4.0 license.
