ISIS Neutron and Muon Source Data Journal

How muons see the motion of negative hydrogen ions in solids

Abstract: Ions are often diffusing in solids. Among many ions, H+, Li+, Na+, O2-, and F- are known to become mobile at high temperatures in solids and they are used for fuel cells and batteries. Very recently, hydride ions (H-) are found to diffuse in inorganic oxyhydride compounds, i.e. LaSrLiH2O2 and related materials. Macroscopic transport measurements provide the evidence of H- diffusion, but the mechanism of such diffusion is still not clarified. Muon spin relaxation (muSR) has a unique feature for detecting ion-diffusion in solids. In particular, the presence of both H- and O2- ions in the lattice suggests that the implanted muons are stable even at high temperatures, based on the past muSR experiments oh MgH2. Therefore, muSR will provide microscopic information in the target materials through the change in local magnetic environments induced by H- diffusion.

Principal Investigator: Dr Jun Sugiyama
Experimenter: Professor Yasmine Sassa
Experimenter: Dr Hiroshi Nozaki
Experimenter: Dr Yuki Higuchi
Experimenter: Dr Ola Kenji Forslund
Experimenter: Professor Martin Mansson
Experimenter: Dr Fanni Juranyi
Experimenter: Dr Genki Kobayashi
Experimenter: Mr Peter Benedek
Local Contact: Dr Fiona Coomer
Experimenter: Dr Izumi Umegaki

DOI: 10.5286/ISIS.E.RB1620083

ISIS Experiment Number: RB1620083

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 Jun Sugiyama et al; (2016): How muons see the motion of negative hydrogen ions in solids, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620083

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