THE EFFECT OF FAST NEUTRON IRRADIATION ON HIGH-TEMPERATURE YBCO SUPERCONDUCTING TAPES
- Authors
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Malika Anvarovna Mussaeva
Institute of Nuclear Physics Uzbekistan Academy of Sciences, Mirzo Ulugbek District, 100214 Tashkent, Uzbekistan
Author
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Ahmad Abdunabievich Shodiev
Institute of Nuclear Physics Uzbekistan Academy of Sciences, Mirzo Ulugbek District, 100214 Tashkent, Uzbekistan
Author
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- Keywords:
- YBCO-coated conductors; fast neutron irradiation; radiation-induced defects; X-ray diffraction; Hall effect; vortex pinning.
- Abstract
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The effect of 14 MeV fast neutron irradiation with a fluence of 2.5×1012 n/cm2 on the structural and electrical properties of YBCO-coated superconducting tapes was investigated using X-ray diffraction (XRD) and Hall effect measurements. Neutron irradiation induces nanoscale defects, leading to noticeable modifications in the phase structure of the multilayer tape. A decrease in the average crystallite size and interplanar spacing, along with an increase in lattice microstrain and dislocation density, was observed for all identified phases, indicating defect formation and atomic-scale disorder. Electrical transport measurements reveal pronounced irradiation-induced trapping effects in the temperature range of 200–325 K, characterized by nonmonotonic conductivity and carrier concentration behavior. Effective activation energies extracted from temperature-dependent conductivity analysis lie in the range of 0.32–0.38 eV, reflecting complex carrier localization and transport processes associated with radiation-induced defects.
- References
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- 2026-06-02
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- Vol. 2 No. 5 (2026)
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