Mechanism of metallization and superconductivity suppression in YBa${}_2($Cu${}_{0.97}$Zn${}_{0.03}{)}_3$O${}_{6.92}$ revealed by ${}^{67}$Zn NQR

Damjan Pelc, Miroslav Požek, Vito Despoja +1

We measure the nuclear quadrupole resonance (NQR) signal on the Zn site in nearly optimally doped YBa${}_2$Cu${}_3$O${}_{6.92}$, when Cu is substituted by 3\% of isotopically pure $^{67}…