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Probing the superconducting ground state of the noncentrosymmetric superconductors CaTSi3 (T = Ir, Pt) using muon-spin relaxation and rotation

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Singh, R. P., Hillier, A. D., Chowdhury, D., Barker, Joel, Paul, Don McK., Lees, Martin R. and Balakrishnan, Geetha (2014) Probing the superconducting ground state of the noncentrosymmetric superconductors CaTSi3 (T = Ir, Pt) using muon-spin relaxation and rotation. Physical Review B (Condensed Matter and Materials Physics), Volume 90 (Number 10). Article number 104504 . doi:10.1103/PhysRevB.90.104504

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Official URL: http://dx.doi.org/10.1103/PhysRevB.90.104504

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Abstract

The superconducting properties of CaTSi3 (where T = Pt and Ir) have been investigated using muon spectroscopy. Our muon-spin-relaxation results suggest that in both these superconductors time-reversal symmetry is preserved, while muon-spin-rotation data show that the temperature dependence of the superfluid density is consistent with an isotropic s-wave gap. The magnetic penetration depths determined from our transverse-field muon-spin-rotation spectra are found to be 448(6) and 150(7) nm for CaPtSi3 and CaIrSi3, respectively.

Item Type: Journal Article
Divisions: Faculty of Science > Physics
Journal or Publication Title: Physical Review B (Condensed Matter and Materials Physics)
Publisher: American Physical Society
ISSN: 1098-0121
Official Date: 9 September 2014
Dates:
DateEvent
9 September 2014Published
7 May 2014Submitted
Volume: Volume 90
Number: Number 10
Article Number: Article number 104504
DOI: 10.1103/PhysRevB.90.104504
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

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