Role of various scattering mechanisms on the resistivity of Pr-doped high-T-c cuprate superconductor YBa2Cu3O7-d

摘要

In this paper, we theoretically studied the electrical resistivity of the heavily Pr-doped YBa2Cu3O7-delta single crystal high-T-c superconductor cuprate. The proposed formulation expands the concept of relaxation times from frequency (energy) line widths for multiple scattering processes by leveraging electron quantum dynamics with the aid of the double-time electron Green function. A thorough analysis was carried out to investigate the effect of dopant-atom scattering as well as magnon scattering on the temperature and reduced frequency dependences of electrical resistivity in the temperature range of 20-300 K. An acceptable level of agreement between theory and experiment has been achieved.