ISIS Neutron and Muon Source Data Journal

Probing the Effect of Applied Field on Magnetocaloric TbOHCO3

Abstract: There is a growing need to reduce dependence on liquid He for cooling applications below 20 K. Magnetocalorics, which exhibit an entropically driven cooling effect in a cycled applied magnetic field, are one opportunity to achieve this; our recent work has shown that LnOHCO3 (Ln = Tb or Dy) have optimised magnetocaloric properties above 4 K in the sub-2T applied fields practical for such devices. Our previous 0 T neutron diffraction studies indicate that the magnetocaloric properties of LnOHCO3 compounds are likely a result of them being host to 1D ferromagnetic chains in a frustrated antiferromagnetic triangular lattice. This study will probe the effect of applied magnetic field, crucial to the magnetocaloric effect, on the magnetic correlations in one of these materials, TbOHCO3, and identify its ordered state indicated by magnetic property measurements to occur at 1.7 K at 0.1 T.

Principal Investigator: Dr Paul Saines
Experimenter: Miss Lydia Burley
Experimenter: Dr Richard Dixey
Experimenter: Dr Pascal Manuel
Experimenter: Dr Anant Srivastava

DOI: 10.5286/ISIS.E.RB1820217

ISIS Experiment Number: RB1820217

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 Paul Saines et al; (2018): Probing the Effect of Applied Field on Magnetocaloric TbOHCO3, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820217

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