ISIS Neutron and Muon Source Data Journal

Magnetic and crystal structure of goethite FeOOD under pressure

Abstract: We propose the first high P/T neutron diffraction measurements on goethite (FeOOH), both the ambient pressure alpha- as well as the high-pressure epsilon-phase, in the P/T range of 0-10 GPa and 300-500 K. Goethite is the most common ferric oxyhydroxide on Earth and possibly on Mars. The pressure dependence of its structure as a function of P and T has been studied by synchrotron x-ray diffraction which obviously could not detect hydrogen nor adress the issue of magnetic ordering. The experiments proposed here will allow locating the hydrogen/deuterium positions, revealing the behaviour of the H-bond as a function of strong compression, and will determine the pressure dependence of the Néel temperature. The results will contribute to a better understanding of H-bonded minerals as well as our understanding of magnetic ordering in fundamental iron-rich solids

Principal Investigator: Dr Stefan Klotz
Experimenter: Dr Craig Bull
Experimenter: Dr Jean-Louis Robert

DOI: 10.5286/ISIS.E.RB1510162

ISIS Experiment Number: RB1510162

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 Stefan Klotz et al; (2015): Magnetic and crystal structure of goethite FeOOD under pressure, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510162

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