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 magnetic excitation in Ca2Ru0.95Sn0.05O4
Abstract: We propose to investigate the magnetic excitation spectrum of Ca2RuO4 lightly substituted with Sn, specifically Ca2Ru0.95Sn0.05O4, using inelastic neutron scattering. The parent compound Ca2RuO4 is a spin orbit coupled Mott insulator exhibiting antiferromagnetic order at 110 K and a well-defined magnon dispersion with a bandwidth of ~40 meV. In our recent publication (PHYSICAL REVIEW B 113, 054433 (2026)), we found that adding Sn to the Ru site changes the structure, pushing the system into a different strain state and altering how the magnetic moments are tilted compared to the original compound. We expect these structural changes to impact the magnetic exchange interactions and, consequently, the magnetic excitation spectrum. To address this question, we propose inelastic neutron scattering measurements at 5 K using incident neutron energies of 80 meV and 20 meV. We plan to take measurements at 5 K using neutron energies of 80 meV and 20 meV, focusing first on 80 meV for 5 hours to fully map the magnon dispersion, and then using 20 meV to look at the low-energy excitations if possible (not necessary). By comparing the dispersion of Ca2Ru0.95Sn0.05O4 with that of the parent compound, we aim to determine how orthorhombic strain and modified spin canting influence the magnetic exchange interactions. This measurement will show how changes in structure, magnetic direction, and exchange interactions work together in this spin-orbit coupled ruthenate system.
Principal Investigator: Dr Anil Jain
Experimenter: Ms Neelam Budania
Local Contact: Dr Travis Williams
DOI: 10.5286/ISIS.E.RB2690048
ISIS Experiment Number: RB2690048
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2690048-1 | MAPS | 17 March 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],
[doi]
For Example:
Dr Anil Jain et al; (2026): Investigation of magnetic excitation in Ca2Ru0.95Sn0.05O4 , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2690048
Data is released under the CC-BY-4.0 license.
