ISIS Neutron and Muon Source Data Journal

Anderson localization in copper benzoate at low temperatures?

Abstract: Anderson localization is a general phenomenon of wave physics, which was originally proposed for electrons in a crystal, but later was also observed for light, microwaves, ultrasound, and ultracold atoms. Actually, in a crystal, besides electrons there may exist other quasiparticles such as magnons and spinons. However the search for Anderson localization of these magnetic excitations is rare so far. Recently, spinon was shown by neutron scattering specific heat measurements, it is remarkable that the spinon thermal conductivity κs only manifests a linear temperature dependence down to 300 mK. Below 300 mK, κs/T decreases rapidly and vanishes at about 100 mK. This could be an evidence of Anderson localization. We propose to perform muon spin relaxation (MuSR) experiments to check this issue, since MuSR has the advantage that it is spin sensitive.

Principal Investigator: Dr Lei Shu
Experimenter: Mr Yanxing Yang
Experimenter: Dr Adrian Hillier
Experimenter: Mr Cheng Tan
Experimenter: Mr Zihao Zhu
Experimenter: Miss Qiong Wu

DOI: 10.5286/ISIS.E.RB1920318

ISIS Experiment Number: RB1920318

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 Lei Shu et al; (2019): Anderson localization in copper benzoate at low temperatures?, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1920318

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