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.
Crystal field excitations in a new Jeff =1/2 honeycomb-lattice spin-liquid material
Abstract: Quantum spin liquids (QSL) represent a highly entangled state of matter in which strong quantum fluctuations prevent long-range magnetic order, despite strong interactions between their magnetic constituents. Unfortunately, anti-site disorder and defects place major constraints on the realization of ideal QSLs in real materials. In this context, the Kitaev model - an emblematic model on a spin-orbit driven Jeff= 1/2 spins on a honeycomb lattice offers a favourable setting for realizing QSLs with exotic excitations, such as itinerant Majorana fermions and localized Z2 fluxes. Here, we focus on a new honeycomb magnet Nd2Te4O11 wherein Nd3+ ions constitute a distorted honeycomb lattice in the ac-plane. Spin-orbit driven anisotropy accounts for the frustrated bond dependent anisotropic interaction in this 4f honeycomb magnet. Thermodynamic data reveal an effective Jeff = 1/2 (Nd3+) Kramers ground-state doublet and a weak antiferromagnetic interaction of the order of a kelvin between magnetic moments. As revealed by macroscopic measurements, this material neither exhibits a symmetry breaking phase transition nor spin glass behaviour down to 0.1 K, thus proposing it is a promising QSL candidate. This calls for a very sensitive local probe such inelastic neutron scattering to probe low-energy excitations. The low-energy excitations include those emerge from the crystal electric field, which are essential to understand the magnetism and anisotropy of Nd2Te4O11.
Principal Investigator: Dr Panchanana Khuntia
Experimenter: Dr Andrej Zorko
Local Contact: Dr Devashi Adroja
Experimenter: Dr Duc Le
Experimenter: Mr Kevin Jakseti?
Experimenter: Dr Matej Pregelj
DOI: 10.5286/ISIS.E.RB2610155
ISIS Experiment Number: RB2610155
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2610155-1 | MARI | 12 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],
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For Example:
Dr Panchanana Khuntia et al; (2026): Crystal field excitations in a new Jeff =1/2 honeycomb-lattice spin-liquid material, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2610155
Data is released under the CC-BY-4.0 license.
