ISIS Neutron and Muon Source Data Journal

QLCR Spectroscopy of Solid Nitrogen

Abstract: Quadrupolar level crossing resonance (QLCR) occurs in the muSR of solids with diamagnetic muon states in close proximity to quadrupolar nuclei. This effect provides uniquely valuable sensitivity to charge states in muSR. Recent progress in the computation of muon states in materials using density functional theory (DFT+mu) can also be applied to predicting and interpreting QLCR spectra. Solid nitrogen provides an excellent example system to test these calculations against experiment. In our latest muon studies of solid nitrogen two key discoveries are firstly the presence of negative diamagnetic muon states, along with the usual positive states, and secondly an anomalously fast relaxation rate for some of the resonances. The QLCR spectra are strongly temperature dependent and further studies are needed to establish the full dependence and relate it to properties of the molecular solid

Principal Investigator: Dr Francis Pratt
Experimenter: Dr Stephen Cottrell
Experimenter: Professor Tom Lancaster
Experimenter: Professor Matja? Gomil?ek

DOI: 10.5286/ISIS.E.RB1920719

ISIS Experiment Number: RB1920719

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 Francis Pratt et al; (2019): QLCR Spectroscopy of Solid Nitrogen, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920719

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