The open archive for STFC research publications

Full Record Details

Persistent URL http://purl.org/net/epubs/work/65536
Record Status Checked
Record Id 65536
Title Evidence for superconductivity with broken time-reversal symmetry in locally noncentrosymmetric SrPtAs
Abstract We report the magnetic and superconducting properties of locally noncentrosymmetric SrPtAs obtained by muon-spin-rotation/relaxation (μSR) measurements. Zero-field μSR reveals the occurrence of small spontaneous static magnetic fields with the onset of superconductivity. This finding suggests that the superconducting state of SrPtAs breaks time-reversal symmetry. The superfluid density as determined by transverse field μSR is nearly flat approaching T=0 K proving the absence of extended nodes in the gap function. By symmetry, several superconducting states supporting time-reversal-symmetry breaking in SrPtAs are allowed. Out of these, a dominantly d+id (chiral d-wave) order parameter is most consistent with our experimental data
Organisation ISIS , ISIS-MuSR , STFC
Keywords ISIS 2013
Funding Information
Related Research Object(s):
Licence Information:
Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Phys Rev B 87, no. 18 (2013): 180503R. doi:10.1103/PhysRevB.87.180503 2013