ISIS Neutron and Muon Source Data Journal

Understanding the barocaloric effect in Mn3NiN using neutron diffraction

Abstract: Materials with large caloric effects offer the opportunity to replace current refrigeration technologies that require the compression of hazardous gases. Whilst magnetocaloric materials driven using magnetic fields are currently the most developed for applications, barocaloric materials driven using hydrostatic pressure are advantageous due to the relative ease and cost of creating mechanical pressure compared to magnetic field. Our recent pressure-dependent magnetisation and calorimetry measurements on the Mn antiperovskite Mn3NiN have revealed a giant barocaloric effect near its first-order paramagnetic to antiferromagnetic transition. Here we propose to use HRPD to determine the magnetic and nuclear structure of this material, as a function of temperature and pressure, in order to understand the origins of our observed giant barocaloric effect.

Principal Investigator: Mr David Boldrin
Experimenter: Dr Jan Zemen
Experimenter: Professor Lesley Cohen
Local Contact: Dr Alexandra Gibbs
Experimenter: Mr Daan Arroo

DOI: 10.5286/ISIS.E.RB1810625

ISIS Experiment Number: RB1810625

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:
Mr David Boldrin et al; (2018): Understanding the barocaloric effect in Mn3NiN using neutron diffraction, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810625

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