ISIS Neutron and Muon Source Data Journal

muSR measurements of the superconducting properties of CeCu2Si2

Abstract: CeCu2Si2 was the first heavy fermion superconductor and unlike those previously discovered, which were well explained by BCS theory, CeCu2Si2 is an unconventional superconductor. Like the high temperature superconductors discovered later, the superconducting mechanism is not understood. The structure of the energy gap of superconductors gives information about the pairing mechanism. Surprisingly, recent measurements show the superconducting gap of CeCu2Si2 is fully open, which is not expected for the d-wave pairing which was believed to occur. Muon spectroscopy measurements may help resolve this mystery. We want to perform measurements in zero field to look for spontaneous magnetic fields in the superconducting state, which will allow us to narrow down the possible pairing states. We will also measure the penetration depth using a transverse field which can probe the gap structure.

Principal Investigator: Professor Michael Smidman
Experimenter: Mr Wenbing Jiang
Experimenter: Dr Devashi Adroja
Local Contact: Dr Pabitra Biswas
Experimenter: Professor Huiqiu Yuan
Experimenter: Mr Chunyu Guo

DOI: 10.5286/ISIS.E.RB1610165

ISIS Experiment Number: RB1610165

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:
Professor Michael Smidman et al; (2016): muSR measurements of the superconducting properties of CeCu2Si2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610165

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