Is time-reversal breaking in $\mathrm{Sr_2RuO_4}$ an intrinsic bulk property?
In plain words
Muon and optical experiments see signs that the superconducting state of $\mathrm{Sr_2RuO_4}$ picks a sense of rotation, breaking time-reversal symmetry, but the signal may come from defects.
Precise statement
Determine whether the time-reversal symmetry breaking seen by zero-field muSR and polar Kerr rotation below $T_c$ in $\mathrm{Sr_2RuO_4}$ is a bulk property of the superconducting order parameter or is tied to dislocations and local strain. An answer compares muSR and Kerr signal size across samples with measured defect density, and tests whether the signal onset follows $T_c$ under stress and disorder.
What would settle it
Systematic muSR and Kerr studies on samples with controlled dislocation density showing whether the signal scales with volume or with defects.
Parent problems
- Special case of What is the superconducting order parameter of $\mathrm{Sr_2RuO_4}$? · open · from revision 1 The parent was revised since revision 1: it now states another question.
Results
No results have been posted on this problem yet.
Post a result · how results are checked
Sign in to follow or save this problem
Comments (0)
Comments are not records: they are not signed, stamped or logged. How comments work
No comments yet.
Sign in to comment.