Bulg. J. Phys. vol.19 no.1-2 (1992), pp. 082-088

The Effect of Annealing on the Superconducting Properties of RF Magnetron Sputtered BSCCO Films

T.C. Nurgaliev, B.G. Goranchev
Institute of Electronics, Bulgarian Academy of Sciences, 72, Tzarigradsko shose, 1784 Sofia, Bulgaria
Abstract. The effect of conventional (long time) and short time (1 min) post annealing of superconducting properties of Bi1Sr1Ca1Cu2Ox films deposited by RF magnetron sputtering on MgO, SrTiO3 and Al2O3 substrates was investigated. By long time annealing procedure values of Tc = 70–78 K were obtained, while the best results by short time annealing were Tc ≤ 68 K. But only short time annealing procedure was successfully used to prepare films on Al2O3 substrates, demonstrating a superconducting transition.

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