Effect of electron irradiation and Pr doping on the charge transport in YBCO single crystals
| Autor: | Vovk, R. V., Khadzhai, G. Ya., Dobrovolskiy, O. V. |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Solid State Commun. 282, 5 (2018) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.ssc.2018.07.005 |
| Popis: | 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. Comment: 5 pages, 3 figures |
| Databáze: | arXiv |
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