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.
Experimental manifestation of true magnetic ground state in a quasi-1-D spin-chain trimer iridate Ba5CuIr3O12
Abstract: Quantum spin liquid (QSL) is an exotic state of matter in which the correlated magnetic moments continue to be fluctuating down to absolute zero temperature. Experimental and theoretical investigations for QSL phase have attracted considerable attention in recent condensed matter community. Geometrically frustrated magnetic lattices have been serving as the key ingredient for attaining the QSL ground state. In such a background, Ba5Ir3CuO12, a 2H-prototype spin-chain d5 iridate, is potential for accommodating exotic magnetic ground state due to the subtle balance between geometric frustration, low dimensionality, spin-orbit coupling, and structural disorder. Combined dc, ac magnetic susceptibility, and specific heat measurements clearly refute static magnetic ordering down to 0.05 K at least (neither a magnetic long-range ordering nor a spin-glass frozen state). Our zero-field (ZF) and longitudinal-field (LF) ?SR characterizations down to 1.8 K refer to persistent dynamics of the iridium moments. At this point, in order to confirm the true magnetic ground state and ascertain the nature of local spin-spin correlations, we propose to perform in-depth microscopic magnetic probe ?SR (both ZF and LF) measurements down to 0.04 K on EMU spectrometer of ISIS muon facility.
Principal Investigator: Dr Abhisek Bandyopadhyay
Local Contact: Dr Koji Yokoyama
Experimenter: Dr Devashi Adroja
Experimenter: Dr Rhea Stewart
DOI: 10.5286/ISIS.E.RB2510718
ISIS Experiment Number: RB2510718
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2510718-1 | EMU | 09 May 2028 | 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 Abhisek Bandyopadhyay et al; (2025): Experimental manifestation of true magnetic ground state in a quasi-1-D spin-chain trimer iridate Ba5CuIr3O12, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510718
Data is released under the CC-BY-4.0 license.
