ISIS Neutron and Muon Source Data Journal

Determination of incommensurate magnetic structure in a stacked triangular quantum antiferromagnet

Abstract: We propose neutron powder diffraction measurements to determine the magnetic structure in hexagonal Na2BaCoP2O8, which is a rare example of a frustrated easy-axis triangular antiferromagnet. In recent neutron single-crystal diffraction on WISH we observed a rich phase diagram with a succession of phases in applied longitudinal field, including a magnetization plateau phase and a phase with a field-dependent incommensurate propagation vector. In zero field the magnetic propagation vector corresponds to a three-sublattice in-plane order with an incommensurate propagation between layers, however the magnetic structure could not be solved in detail due to complexities in correcting the single crystal time-of-flight diffraction peak intensities. Here we propose to collect a powder diffraction pattern to obtain a reliable and quantitative parameterization of the zero-field magnetic structure to distinguish between competing magnetic structure models and also determine the absolute value of the ordered moment.

Local Contact: Dr Pascal Manuel
Experimenter: Professor Radu Coldea
Experimenter: Dr Ryutaro Okuma

DOI: 10.5286/ISIS.E.RB2310330

ISIS Experiment Number: RB2310330

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 Pascal Manuel et al; (2023): Determination of incommensurate magnetic structure in a stacked triangular quantum antiferromagnet, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310330

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