ISIS Neutron and Muon Source Data Journal

Magnetic excitations of the spin-1/2 antiferromagnetic XXZ chain PbCo2V2O8

Abstract: Here we would like to investigate a new member of the family of effective spin-1/2 antiferromagnetic Heisenberg-Ising chain materials ACo2V2O8, A = Sr, Ba, namely, PbCo2V2O8. It is isostructural to the sister compound SrCo2V2O8 and very similar to BaCo2V2O8, but it has a lower energy scale making it magnetic field phases more accessible with available magnets. We recently determined its magnetic and thermodynamic properties and solved its magnetic structure below the ordering temperature of TN = 3.8 K (see Phys. Rev. B 108, 144432). Here we wish to measure the magnetic spectrum on a single crystal sample (mass of 1 g). PbCo2V2O8 is expected to have a gapped spinon continuum above TN while below TN we expected to see the bound-spinons modes due to the interchain coupling. We therefore plan to measure the spectrum both at 1.8 K and 5 K. In terms of the energy scale we expect excitations extending up to a maximum between 8 and 12 meV.

Principal Investigator: Dr Konrad Puzniak
Local Contact: Dr Viviane Pecanha Antonio
Experimenter: Dr Alysia Lake
Experimenter: Dr Cintli Aguilar-Maldonado
Experimenter: Dr Nazmul Islam

DOI: 10.5286/ISIS.E.RB2520394

ISIS Experiment Number: RB2520394

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 Konrad Puzniak et al; (2025): Magnetic excitations of the spin-1/2 antiferromagnetic XXZ chain PbCo2V2O8 , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520394

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