ISIS Neutron and Muon Source Data Journal

Negative muon spin rotation and relaxation for MgB2

Abstract: In order to show a potential power of a negative muon spin rotation and relaxation (mu-SR) technique for observing local magnetic environments, we here want to propose a mu-SR experiment on MgB2. Here, negative muons are trapped by either Mg or B. The negative muons trapped by B will provide no mu-SR signal due to nuclear magnetic moment of B, while the muons trapped by Mg will do a clear mu-SR signal formed by nuclear magnetic moments of B. Therefore, we will see a local magnetic field from the Mg site. This has a significant advantage over the positive muon spin rotation and relaxation (mu+SR) technique, because positive muons are known to diffuse in MgB2 even at temperatures above 12.5 K. As a result, it is very difficult to study a dynamic behavior of the internal magnetic field, particularly at around the superconducting transition temperature (39 K).

Principal Investigator: Dr Jun Sugiyama
Experimenter: Professor Martin Mansson
Experimenter: Dr Izumi Umegaki
Experimenter: Dr Adrian Hillier
Experimenter: Mr Peter Benedek
Experimenter: Dr Ola Kenji Forslund
Experimenter: Dr Elisabetta Nocerino

DOI: 10.5286/ISIS.E.RB1820557

ISIS Experiment Number: RB1820557

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; (2018): Negative muon spin rotation and relaxation for MgB2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820557

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