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Improvement of Upper Critical Field in YBa2Cu3Oy Films by Substituting 3d Metal for Cu Sites Using Combinatorial Pulsed-laser Deposition
It is well known that the critical upper field B c2 is improved by shortening of the coherence length owing to the scattering of electrons in a superconductor. In order to improve of B c2 in YBa 2 Cu 3 O y (YBCO) films in our study, we substituted 3d metals (M = Zn, Co, Ni, Fe) for the Cu sites of the YBCO films. We used combinatorial pulsed-laser deposition to fabricate different YBa 2 (Cu 1-x M x ) 3 O y films by continuously changing the amount of substitution metal x, from 0 to 0.01 on adoi:10.1016/j.phpro.2014.09.015 fatcat:tdgz5dqtafcabpmyvctiu6qjpu