ISIS Neutron and Muon Source Data Journal

The low-temperature structural phase transition in CuSO4·5D2O as a function of pressure

Abstract: Copper sulfate pentahydrate is a common material with a long history of use in testing crystallographic theories and methods. Much of the interest in its behaviour as a model 1-dimensional magnetic system at low T is predicated upon there being no structural phase transition on cooling from room-temperature to 1 Kelvin. However, we now know there to be a structural transition at 32 K in which the unit cell doubles along the a- and c-axis directions due to a change in the site symmetry of one of the independent Cu2+ ions. Coupled with calculations showing that these sites compress in a dramatically different ways, it becomes interesting to investigate the structural phase transition at high pressure. Suitable pressure cells, allowing the requisite high-resolution neutron powder diffraction data have been manufactured and tested on HRPD allowing us to probe the transition to 5.4 kbar.

Local Contact: Dr Dominic Fortes
Experimenter: Dr Silvia Capelli
Experimenter: Dr Alexandra Gibbs

DOI: 10.5286/ISIS.E.RB2010072

ISIS Experiment Number: RB2010072

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 Dominic Fortes et al; (2021): The low-temperature structural phase transition in CuSO4·5D2O as a function of pressure, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010072

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