The Library
Unconventional superconductivity in La7Ir3 revealed by muon spin relaxation : introducing a new family of noncentrosymmetric superconductor that breaks time-reversal symmetry
Tools
Tools
Tools
Barker, Joel, Singh, D., Singh, R. P., Thamizhavel, A., Hillier, A. D. (Adrian D.), Lees, Martin R., Balakrishnan, Geetha and Paul, Don McK. (2015) Unconventional superconductivity in La7Ir3 revealed by muon spin relaxation : introducing a new family of noncentrosymmetric superconductor that breaks time-reversal symmetry. Physical Review Letters, 115 . 267001. doi:10.1103/PhysRevLett.115.267001 ISSN 0031-9007.
|
PDF
WRAP-unconventional-superconductivity-La7Ir3-Lees-2015.pdf - Accepted Version - Requires a PDF viewer. Download (822Kb) | Preview |
Official URL: https://doi.org/10.1103/PhysRevLett.115.267001
Abstract
The superconductivity of the noncentrosymmetric compound La7Ir3 has been investigated using muon spin rotation and relaxation (μSR). Zero-field measurements reveal the presence of spontaneous static or quasi-static magnetic fields below the superconducting transition temperature Tc = 2:25 K - a clear indication that the superconducting state breaks time-reversal symmetry. Furthermore, transverse-field rotation measurements suggest that the superconducting gap is isotropic, and that the pairing symmetry of the superconducting electrons is predominantly s-wave with an enhanced binding strength. The results indicate that the superconductivity in La7Ir3 may be unconventional, and paves the way for further studies of this family of materials.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
| Library of Congress Subject Headings (LCSH): | Superconductivity., Physics. | ||||||
| Journal or Publication Title: | Physical Review Letters | ||||||
| Publisher: | American Physical Society | ||||||
| ISSN: | 0031-9007 | ||||||
| Official Date: | 30 December 2015 | ||||||
| Dates: |
|
||||||
| Volume: | 115 | ||||||
| Article Number: | 267001 | ||||||
| DOI: | 10.1103/PhysRevLett.115.267001 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||
| Copyright Holders: | American Physical Society | ||||||
| Date of first compliant deposit: | 19 April 2017 | ||||||
| Date of first compliant Open Access: | 21 April 2017 | ||||||
| Funder: | ISIS Science and Technology Facilities Council, Science and Engineering Research Board, Engineering and Physical Sciences Research Council (EPSRC) | ||||||
| Grant number: | ST/K502418/1, SR/S2/RJN-83/2012, EP/I007210/1 |
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |
Downloads
Downloads per month over past year
