ISIS Neutron and Muon Source Data Journal

Characterising the magnetic structure of Pd3Fe under pressure

Abstract: Pd-Fe alloys are of interest due to the unusual interplay between the magnetic and mechanical properties they display. Examples include shape-memory effects in Fe-rich alloys, and the pressure induced zero thermal expansion (`Invar' behaviour) of Pd-rich alloys. Previous work has shown that Pd3Fe undergoes a large volume collapse under a pressure of 12GPa, with a loss of magnetic order. At this pressure the sample also displays almost zero thermal expansion up to 550K. From subsequent simulations and inelastic studies, it is not clear whether the sample becomes magnetically spin-disordered or geometrically frustrated (non-collinear). This study proposes a 3 day single-crystal neutron diffraction study on WISH in order to characterise the magnetic structure of the sample in this high pressure phase. This study hopes to provide insight into the nature of `Invar' behaviour in binary alloys.

Principal Investigator: Professor Konstantin Kamenev
Local Contact: Dr Dmitry Khalyavin
Experimenter: Dr Xiao Wang
Experimenter: Professor Andrew Huxley
Experimenter: Dr Craig Bull
Experimenter: Professor Don Paul
Experimenter: Dr Christopher Ridley
Experimenter: Dr Pascal Manuel

DOI: 10.5286/ISIS.E.RB1510523

ISIS Experiment Number: RB1510523

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:
Professor Konstantin Kamenev et al; (2015): Characterising the magnetic structure of Pd3Fe under pressure, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510523

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