ISIS Neutron and Muon Source Data Journal

A µSR study of the noncentrosymmetric superconductor La7Pd3 and the centrosymmetric superconductor La7Ru3

Abstract: In superconductors, the inversion symmetry of the crystallographic structure plays a central role in the formation of the Cooper pairs. The intermetallic compounds La7Pd3 and La7Ru3 are noncentrosymmetric (NCS) and centrosymmetric (CS), respectively. We propose to study the superconducting properties of La7Pd3 and La7Ru3 using muons as a microscopic probe to determine the temperature dependence of penetration depth and the superfluid density, investigate the physics of the vortex state, and search for time reversal symmetry breaking (TRSB). This investigation of two members of the Th7Fe3 family of materials is particularly interesting and timely, as we have recently found TRSB in the related NCS superconductor La7Ir3. By comparing the NCS (La7Pd3) and CS (La7Ru3) cases, we will be able to investigate further the role inversion symmetry plays in controlling the physics of these systems.

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

DOI: 10.5286/ISIS.E.RB1720161

ISIS Experiment Number: RB1720161

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 Martin Lees et al; (2017): A µSR study of the noncentrosymmetric superconductor La7Pd3 and the centrosymmetric superconductor La7Ru3, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1720161

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