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.
Probing Low-energy Magnetic Excitations in Triangular-Lattice Phosphates Rb?Nd(PO?)? and Rb?Yb(PO?)?
Abstract: The recently discovered triangular-lattice phosphates Rb?RE(PO?)?, where RE represents a rare-earth element, exhibit strong frustration effects arising from the ideal triangular lattice formed by REł? ions. Among them, Rb?Yb(PO?)? (RYP) and Rb?Nd(PO?)? (RNP) stand out for their distinct magnetic behaviors. RYP, with a trigonal structure, does not exhibit long-range magnetic ordering even down to 50 mK, making it an ideal candidate for exploring quantum spin liquid states. In contrast, RNP, which adopts a monoclinic structure, also lacks long-range order above 1.8 K but shows distinct magnetic anisotropy. Despite these differences, both materials display remarkable magnetocaloric effects in the sub-Kelvin regime, indicating strong low-energy quantum fluctuations.We propose to study the low-energy magnetic excitations of RYP and RNP using cold-neutron backscattering measurements at the IRIS spectrometer. These compounds, despite their structural differences, provide a unique opportunity to explore how lattice distortions and magnetic anisotropy influence their quantum behavior. By mapping the low-energy spin dynamics, we aim to extract their spin Hamiltonians and gain deeper insights into the collective magnetism of rare-earth triangular-lattice antiferromagnets, especially focusing on the nature of their quantum excitations and frustration-driven phenomena.
Principal Investigator: Professor Wentao Jin
Experimenter: Mr Yonglin Wang
Local Contact: Dr Franz Demmel
DOI: 10.5286/ISIS.E.RB2520084
ISIS Experiment Number: RB2520084
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2520084-1 | IRIS | 01 March 2029 | 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:
Professor Wentao Jin et al; (2026): Probing Low-energy Magnetic Excitations in Triangular-Lattice Phosphates Rb?Nd(PO?)? and Rb?Yb(PO?)? , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520084
Data is released under the CC-BY-4.0 license.
