S wave superconductivity in newly discovered superconductor BaTi${}_2$Sb${}_2$O revealed by ${}^{121/123}$Sb-NMR/Nuclear Quadrupole Resonance measurements

S. Kitagawa, K. Ishida, K. Nakano +2

We report the ${}^{121/123}$Sb-NMR/nuclear quadrupole resonance (NQR) measurements on the newly-discovered superconductor BaTi${}_2$Sb${}_2$O with a two-dimensional Ti${}_2$O square-net la…