ISIS Neutron and Muon Source Data Journal

Is there a spin-spiral to Néel transition under uniaxial stress in the triangular antiferromagnet PdCrO2?

Abstract: In measurements under uniaxial stress, we have identified a new transition in the triangular antiferromagnet PdCrO2 at which the sample length shrinks abruptly by 0.15%. The magnetic order of unstressed PdCrO2 is 120-degree antiferromagnetism, and in previous beamtimes we observed the propagation vectors to shift as uniaxial stress was applied to distort the triangular lattice. We hypothesise that this new transition is a spin-spiral-to-Néel transition. The goal of this beamtime proposal is to test this hypothesis. The spin-spiral-to-Néel transition that we hypothesise was predicted in 1959 to occur when a triangular lattice is distorted to become more square, but it has not yet been observed.

Local Contact: Dr Dmitry Khalyavin
Experimenter: Dr Richard Waite
Experimenter: Ms Nina Stilkerich
Experimenter: Dr Clifford Hicks

DOI: 10.5286/ISIS.E.RB2320180

ISIS Experiment Number: RB2320180

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 Dmitry Khalyavin et al; (2023): Is there a spin-spiral to Néel transition under uniaxial stress in the triangular antiferromagnet PdCrO2?, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2320180

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