Effect of electron irradiation and Pr doping on the charge transport in YBCO single crystals

Abstract

The influence of irradiation by electrons with energies of $0.5-2.5$\,MeV at temperatures of about $10$\,K on the basal-plane resistivity of the YBa${}_2$Cu${}_3$O${}_{7-\delta }$ single crystals is investigated in the range from $T_c$ to $300$\,K. The resistivity temperature dependence is determined by defects arising due to the irradiation. These defects directly affect the superconducting transition, decreasing $T_c$ and increasing the transition width without significant distortions of its shape. The resulting defects also lead to an increase in the Debye temperature due to a reduction of the anisotropy, and a noticeable increase in the scattering by phonons in the sample. The excess conductivity does not change with the irradiation used.

5 pages, 3 figures

References in corpus (1)

• Evolution of the fishtail-effect in pure and Ag-doped MG-YBCO

Cited by in corpus (3)

• Influence of electron irradiation on fluctuation conductivity and pseudogap in $YB{a}_{2}C{u}_3{O}_{7-\delta }$ single crystals
• Influence of strong electron irradiation on fluctuation conductivity and pseudogap in YBa${}_2$Cu${}_3$O${}_7$--$\delta$ single crystals
• Tuning electric charge scattering in YBCO single crystals via irradiation with MeV electrons