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The effect of BZO dopant concentration on magnetically obtained Birr and Bc2 in YBCO thin films deposited on STO substrates

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, , Citation P Paturi et al 2014 J. Phys.: Conf. Ser. 507 012040 DOI 10.1088/1742-6596/507/1/012040

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1 Wiliuri Physical Laboratory, Department of Physics and Astronomy, University of Turku, 20014 Turku, Finland

2 National Graduate School on Nanoscience, Finland

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1742-6596/507/1/012040

Abstract

The effect of BaZrO3 (BZO) dopant concentration (0-9 wt-%) on magnetically obtained irreversibility field Birr and upper critical field Bc2 is investigated in YBa2Cu3O6+x (YBCO) thin films prepared by pulsed laser deposition on SrTiO3 (001) (STO) substrates. It is found that the magnetic determination of Birr and Bc2 works well. The results show that BZO-doping increases Bc2 in all concentrations, implying a change in the coherence length and band structure of the superconductor.

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10.1088/1742-6596/507/1/012040