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

R. V. Vovk; G. Ya. Khadzhai; O. V. Dobrovolskiy

doi:10.1016/j.ssc.2018.07.005

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

Superconductivity 2019-01-21 v1

Authors: R. V. Vovk , G. Ya. Khadzhai , O. V. Dobrovolskiy

View on arXiv ↗ PDF ↗ DOI ↗

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.

Keywords

electron irradiation ybco single crystals charge transport basal-plane resistivity superconducting transition debye temperature phonon scattering

Cite

@article{arxiv.1901.06194,
  title  = {Effect of electron irradiation and Pr doping on the charge transport in YBCO single crystals},
  author = {R. V. Vovk and G. Ya. Khadzhai and O. V. Dobrovolskiy},
  journal= {arXiv preprint arXiv:1901.06194},
  year   = {2019}
}

Comments

5 pages, 3 figures

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

Abstract

Keywords

Cite

Comments

Related papers