ISIS Neutron and Muon Source Data Journal

Determining the role of inversion symmetry in single crystals of the noncentrosymmetric superconductor La7Ir3 by µSR.

Abstract: In superconductors, the inversion symmetry of the crystallographic structure plays a central role in the formation of the Cooper pairs. When inversion symmetry is broken, there is the possibility of a mixing of singlet-triplet pairing, leading to unconventional superconducting properties.La7Ir3 is a noncentrosymmetric (NCS) superconductor where time-reversal symmetry (TRS) breaking below the superconducting Tc is observed in polycrystalline samples. We have successfully grown the first single crystals of La7Ir3. We propose to use muons to study the anisotropy of the superconducting properties of La7Ir3, investigate the influence of magnetic fluctuations, and search for TRS breaking. To the best of our knowledge, this would be the first time TRS breaking is studied in a single crystal of a NCS superconductor where TRS breaking is observed in samples in the polycrystalline form.

Principal Investigator: Professor Martin Lees
Experimenter: Professor Don Paul
Experimenter: Dr Daniel Mayoh
Experimenter: Dr Adrian Hillier
Experimenter: Professor Geetha Balakrishnan
Experimenter: Professor Toshiro Takabatake

DOI: 10.5286/ISIS.E.RB1810665

ISIS Experiment Number: RB1810665

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Martin Lees et al; (2018): Determining the role of inversion symmetry in single crystals of the noncentrosymmetric superconductor La7Ir3 by µSR., STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810665

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