Probing chiral superconductivity in Sr${}_2$RuO${}_4$ underneath the surface by point contact measurements

He Wang, Jiawei Luo, Weijian Lou +4

Sr${}_2$RuO${}_4$ (SRO) is the prime candidate for chiral $p$-wave superconductor with critical temperature $T_c(SRO)\sim$1.5 K. Chiral domains with opposite chiralities $p_{x}\p…