ISIS Neutron and Muon Source Data Journal

Superconducting Pairing Symmetry of the Non-Magnetic Anion-Based Organic Superconductor lambda-(BETS)2GaCl4 Studied by mSR

Abstract: lambda-(BETS)2GaCl4 is a non-magnetic anion-based organic superconductor SC attracting interest since its Fe analog becomes SC by applying 33 T. Both SCs have similar Tc ~5 K. We measured TF=30&60 G and ZF-μSR down to 0.3K on powder sample. In order to achieve more information about superconducting pairing symmetry from different angles, we measured TF dependence of the damping rate of the muon spin precession s(B), up to 70 G. This measurement is important to investigate the field dependence of the penetration depth, to discuss the Cooper pairing symmetry and to search nonlocal effects. Such kind of measurement has never been done in the past. Due to the narrower TF region and large error bars, the s(B) is still unsure. Accordingly, we have got a strong requirement to carry out the same experiments in the higher TF down to mK range in order to satisfy our questions on this SC.

Principal Investigator: Dr Isao Watanabe
Experimenter: Dr Ko-ichi HIRAKI
Local Contact: Dr Adam Berlie
Experimenter: Dr Majed Abdel Jawad
Experimenter: Dr Retno Asih
Experimenter: Dr Yasuyuki Ishii
Experimenter: Professor Takehito Nakano
Experimenter: Dr Dita Puspita Sari

DOI: 10.5286/ISIS.E.RB1710197

ISIS Experiment Number: RB1710197

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 Isao Watanabe et al; (2017): Superconducting Pairing Symmetry of the Non-Magnetic Anion-Based Organic Superconductor lambda-(BETS)2GaCl4 Studied by mSR, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1710197

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