Nuclear spin-lattice relaxation rate and nonmagnetic pair-breaking effect in electron-doped Pr_{0.91}LaCe_{0.09}CuO_{4-y}: Signature of highly anisotropic s-wave gap

Guo-meng Zhao

We numerically calculate the nuclear spin-lattice relaxation rate (Rs) in the superconducting state in terms of anisotropic s-wave gaps. By taking into account electron-phonon coup…