ISIS Neutron and Muon Source Data Journal

Sample-cooling effects on the field-induced low-temperature magnetic phase in NaO2

Abstract: Molecular solids like sodium superoxide NaO2 possess relatively simple crystal structures, yet their magnetism is surprisingly complex. This is presumably due to the interplay of spin, orbital and lattice degrees of freedom, which leads to intriguing effects related to reorientation of O2- molecular p orbitals. In such cases the cooling procedure leading to the magnetic ground state may be of high relevance. In our previous muSR studies of NaO2, we have discovered an intriguing magnetic phase below 3 K induced by an applied magnetic field of the order of only 100 G. Two different experiments that have been performed so far indicate a possible cooling-dependence of this effect. Here we propose to carry on the muSR investigation of the field-induced phase after various controlled cooling protocols. We expect that these measurements will finally unveil the mechanism of the observed effect.

Principal Investigator: Dr Andrej Zorko
Experimenter: Dr Peter Adler
Experimenter: Dr Martin Klanjsek
Experimenter: Dr Denis Arcon
Experimenter: Mr Tilen Knaflic
Local Contact: Dr Pabitra Biswas
Experimenter: Dr Martin Jansen

DOI: 10.5286/ISIS.E.RB1820170

ISIS Experiment Number: RB1820170

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 Andrej Zorko et al; (2019): Sample-cooling effects on the field-induced low-temperature magnetic phase in NaO2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820170

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