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.


muSR study on highly frustrated triangular lattice compound Ba3YbRu2O9

Abstract: The Ba3BRu2O9 (B=Transition-metal or Rare-earth) compounds have gained a lot of interest in recent years owing to the interesting observations of quantum spin liquid, orbital ordering, and complex magnetic ordering in these compounds. Here we propose to study one member of this family, Ba3YbRu2O9, a highly frustrated compound with a frustration index of ~50, by performing ZF- and LF-muSR experiments at the EMU spectrometer. The dc magnetization study on the compound reveals a magnetic transition at ~4.3 K. Interestingly, the specific heat data infers a broad anomaly centered at ~7.5 K suggesting short-range correlation in the paramagnetic state, along with a sharp anomaly at ~ 4.3 K. The deviation of the paramagnetic susceptibility from the Curie-Weiss behavior below ~100 K, a temperature much higher than the transition temperature of TN~4.3 K, also suggests the presence of short-range magnetic correlations in the paramagnetic state of the compound. The proposed ZF-muSR experiments will shed light on the short-range magnetic correlations in the compound, while LF-muSR scans will be helpful to get an estimate of the internal magnetic field to decouple the muon spins. Longitudinal field (LF) scans will help in understanding the role of any inhomogeneities/disorder in muon relaxation, if present, as reported for other Ba3YRu2O9 and Ba3InRu2O9 isostructural compounds.

Principal Investigator: Dr Deepak Garg
Local Contact: Dr James Lord
Experimenter: Dr Yixi Su

DOI: 10.5286/ISIS.E.RB2510650

ISIS Experiment Number: RB2510650

Part DOI Instrument Public release date Download Link
10.5286/ISIS.E.RB2510650-1 MUSR 16 May 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 Deepak Garg et al; (2025): muSR study on highly frustrated triangular lattice compound Ba3YbRu2O9, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510650

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



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