Angular and magnetic field dependences of critical current in irradiated YBaCuO single crystals
The investigation of mechanisms responsible for the current-carrying capability of irradiated high-temperature superconductors (HTSC) was realized. For the purpose, experiments were made to investigate the effect of point defects generated by high-energy electron irradiation on the critical temperat...
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| Datum: | 2010 |
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| Format: | Artikel |
| Sprache: | English |
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Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2010
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/17374 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Angular and magnetic field dependences of critical current in irradiated YBaCuO single crystals / Y. Petrusenko // Вопросы атомной науки и техники. — 2010. — № 5. — С. 3-14. — Бібліогр.: 35 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | The investigation of mechanisms responsible for the current-carrying capability of irradiated high-temperature superconductors (HTSC) was realized. For the purpose, experiments were made to investigate the effect of point defects generated by high-energy electron irradiation on the critical temperature and the critical current in high-Tc superconducting single crystals YBa2Cu3O7-x. The transport current density measured in HTSC single crystals YBa2Cu3O7-x by the dc-method was found to exceed 80000 A/cm². The experiments have demonstrated a more than 30-fold increase in the critical current density in single crystals irradiated with 2.5 MeV electrons to a dose of 3×10^18 el/cm². Detailed studies were made into the anisotropy of critical current and the dependence of critical current on the external magnetic field strength in irradiated single crystals. A high efficiency of point defects as centers of magnetic vortex pinning in HTSC single crystals was first demonstrated. |
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