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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
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: |
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| 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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