Surface pinning as origin of high critical current in superconducting films
| العنوان: | Surface pinning as origin of high critical current in superconducting films |
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| المؤلفون: | A. Yu. Prokhorov, C. M. Muirhead, Pavlo Mikheenko, Yu. V. Medvedev, R. A. Chakalov, V. A. Khokhlov, A. I. Kosse, Yu. E. Kuzovlev, G. G. Levchenko |
| المصدر: | Superconductor Science and Technology. 17:S520-S523 |
| بيانات النشر: | IOP Publishing, 2004. |
| سنة النشر: | 2004 |
| مصطلحات موضوعية: | Superconductivity, Surface (mathematics), Materials science, Condensed matter physics, Metals and Alloys, Bending, Condensed Matter Physics, Laser, law.invention, Vortex, Core (optical fiber), law, Condensed Matter::Superconductivity, Materials Chemistry, Ceramics and Composites, Surface roughness, Electrical and Electronic Engineering, Pinning force |
| الوصف: | We give theoretical and experimental evidence that high critical currents in laser ablated Y Ba2Cu3Ox films can be due to the pinning of vortices by surface roughness. The theory, which takes into account the bending of the vortex core and its orthogonality to the film surface, predicts that any surface elevation causes an increase in the core length and therefore produces an energy barrier whose height is proportional to the film thickness and can exceed bulk pinning barriers. Comparison with experiments gives satisfactory agreement with the value of critical current density and shows that the latter can be explained by the pinning at a steplike surface relief. |
| تدمد: | 1361-6668 0953-2048 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::64c414bbd1b018c3f60cb170339d3cbf https://doi.org/10.1088/0953-2048/17/9/012 |
| رقم الأكسشن: | edsair.doi...........64c414bbd1b018c3f60cb170339d3cbf |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13616668 09532048 |
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