ISIS Neutron and Muon Source Data Journal

Muon spin rotation and relaxation studies of the filled skutterudite superconductor LaOs4As12 and LaRu4As12

Abstract: The understanding of the pairing mechanism in unconventional superconductors is a major theoretical challenge. Recent muon-spin relaxation measurements of the heavy-fermion superconductor filled-skutterudite PrOs4Sb12 reveal the spontaneous appearance of static internal magnetic fields below the Tc, providing unambiguous evidence for the breaking of time-reversal symmetry in the superconducting state. LaRu4As12 and LaOs4As12 is also a filled-skutterudite compound, with Tc = 10.3 K and 3.2 K respectively. The Tc of LaRu4As12 (multiple superconducting gaps) is the highest in these compounds. For LaOs4As12 the temperature dependences of the nuclear spin?lattice relaxation rates of 75As nuclei can be understood in terms of antiferromagnetic spin fluctuations (ASF). We want to study these compounds by zero-field and transverse field µSR technique using MUSR spectrometer.

Principal Investigator: Dr Devashi Adroja
Experimenter: Professor Andre Strydom
Experimenter: Professor Tomasz Cichorek
Experimenter: Dr Amitava Bhattacharyya
Experimenter: Dr Adrian Hillier

DOI: 10.5286/ISIS.E.RB1520431

ISIS Experiment Number: RB1520431

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 Devashi Adroja et al; (2016): Muon spin rotation and relaxation studies of the filled skutterudite superconductor LaOs4As12 and LaRu4As12 , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520431

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