ISIS Neutron and Muon Source Data Journal

Muon Spin Relaxation studies on superconducting Ba1-xSrxNi2As2

Abstract: The interplay between nematicity, magnetism and superconductivity is the key to understand the physics of iron-based superconductivity. Recently, BaNi2As2 and SrNi2As2, both being superconducting below 0.6 K without evidence of magnetic order or fluctuations, offers a unique opportunity to study the role of nematic fluctuations in the electron Cooper pairing without the effect of magnetic fluctuations. To elucidate the precise relationship between nematicity and superconductivity in Ba1-xSrxNi2As2, we propose to perform ?SR experiments to measure the magnetic penetration depth of Ba1-xSrxNi2As2 (x = 0, 0.7, and 1). The success of the experiments will tell us the doping evolution the superconducting gap symmetry, which should help to understand how nematic fluctuations enhance superconductivity in Ba1-xSrxNi2As2.

Principal Investigator: Dr Lei Shu
Experimenter: Mr Yanxing Yang
Experimenter: Dr Adrian Hillier
Local Contact: Dr Adam Berlie
Experimenter: Mr Zihao Zhu
Local Contact: Dr James Lord

DOI: 10.5286/ISIS.E.RB2010283

ISIS Experiment Number: RB2010283

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; (2020): Muon Spin Relaxation studies on superconducting Ba1-xSrxNi2As2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2010283

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