Effect of mechanical deformation on the critical current in YBa2Cu3O7−b superconducting films
Э. М. ИбрагимоваInstitute of Nuclear Physics, Academy of Sciences of Uzbekistan, Tashkent, 702132, UzbekistanM. U. KalanovInstitute of Nuclear Physics, Academy of Sciences of Uzbekistan, Tashkent, 702132, UzbekistanMark A. KirkArgonne National Laboratory, Argonne, Illinois, USAS. R. FoltynLos Alamos National Laboratory, New Mexico, USA
ABI
Аннотация
It is shown that local mechanical bending of YBa2Cu3O7−b Ag-coated superconducting films deposited on flexible metal substrates in the temperature interval 77–300 K may increase the critical density J c of the transport current to values as high as 106 A/cm2 or even higher at 77 K. Also, bending decreases the voltage criterion. This means a rise in the intergranular conductivity and, accordingly, a reduction of Joule losses.
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