ISIS Neutron and Muon Source Data Journal

LF musr study of magnetic phases and spin dynamics in a Shastry-Sutherland Quantum Magnet

Abstract: In 2D magnetic compounds, the Shastry-Sutherland lattice (SSL) ? a square lattice with an antiferromagnetic exchange J between dimerized nearest neighbours and J? between next-nearest-neighbours, has attracted attention due to its complex phase diagram, displaying a variety of novel phases as function of magnetic field. The 2D SSL model, consisting of an orthogonal dimer network of spin S=1/2, represents one of the very few topologies where the ground state of a geometrical frustrated lattice could be exactly solved. Previous experimental realizations of the SSL model such as SrCu2(BO3)2 (SCBO) exhibit multiple magnetization plateaus at fractional values, but the critical fields have previously been much too large for muSR studies. Lately, a new rare-earth SSL compound Er2Be2GeO7 with weaker interactions that SCBO was found to show magnetization plateaus with critical fields below 1T, giving the first opportunity for muSR to provide a local probe study of the magnetic properties of the SSL lattice.

Experimenter: Dr Benjamin Huddart
Experimenter: Professor Sara Haravifard
Local Contact: Dr Francis Pratt
Experimenter: Professor Stephen Blundell

DOI: 10.5286/ISIS.E.RB2410682

ISIS Experiment Number: RB2410682

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 Benjamin Huddart et al; (2025): LF musr study of magnetic phases and spin dynamics in a Shastry-Sutherland Quantum Magnet, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2410682

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