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Öğe Magnetoresistance properties of MgB2 thick films on YSZ substrate using spray pyrolysis method(Iop Publishing Ltd, 2009) Altin, S.; Aksan, M. A.; Yakinci, Z. D.; Oezabaci, M.; Balci, Y.; Yakinci, M. E.The MgB2 thick films have been fabricated on the polycrystalline YSZ substrates using spray pyrlosis technique. Structural/microstructural, electrical and magnetic properties were investigated by XRD, SEM-EDX and R-T measurements. The films fabricated showed dense and homogenous structural formation with strong grain connections. The electrical properties of MgB2 thick films were investigated under different magnetic fields. It was seen that resistive transition broadened with increasing the applied magnetic fields. It was believed that the broadening is due to the thermally activated flux flow (TAFF). The activation energy, U(H), of the MgB2 films was calculated using Arhenius law.
