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.
Muon spin rotation study to investigate a possible spin liquid behaviour in 1D spin-chain compound K2PrNb5O15
Abstract: The K2RENb5O15 (RE = rare earths) having tetragonal tungsten-bronze structure present interesting magnetic ground state where the RE3+ ions from 1D linear spin-chain along the c-axis. The magnetic measurements on K2PrNb5O15 have shown absence of long-range magnetic ordering in magnetic susceptibility ?(T) down to 1.8 K accompanied with a strongly reduced isothermal magnetization M(H) due to strong crystal electric field (CEF) effect. Our heat capacity measurements in zero-field as well as in applied fields find no anomaly related to a magnetic phase transition down to 130 mK, however the magnitude increases in applied fields, suggesting the presence of ferromagnetic correlations. Our inelastic neutron scattering study on K2PrNb5O15 on MARI reveals well defined CEF excitations indicating arising from localized Pr moments. Absence of magnetic ordering down to 130 mK together with strong CEF is indicative of CEF-driven spin-liquid-like feature in this compound. Further investigations using the microscopic muon spin relaxation measurements are highly required to investigate the spin-dynamics and possible spin-liquid behavior in 1D Pr-spin-chain system K2PrNb5O15. We therefore propose to carry out µSR measurements on K2PrNb5O15 using the ?SR spectrometer EMU.
Principal Investigator: Dr Devashi Adroja
Experimenter: Dr Stephen Cottrell
Experimenter: Dr Abhisek Bandyopadhyay
Experimenter: Dr Adrian Hillier
Experimenter: Dr Liusuo Wu
Local Contact: Dr Koji Yokoyama
Experimenter: Dr Uthayakumar Sivaperumal
Experimenter: Professor Zhaoming Tian
Experimenter: Professor Andre Strydom
Experimenter: Dr Vivek Kumar Anand
DOI: 10.5286/ISIS.E.RB2520642
ISIS Experiment Number: RB2520642
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2520642-1 | MUSR | 01 October 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],
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For Example:
Dr Devashi Adroja et al; (2025): Muon spin rotation study to investigate a possible spin liquid behaviour in 1D spin-chain compound K2PrNb5O15 , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520642
Data is released under the CC-BY-4.0 license.
