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Yukio OSAKA Hiroaki MYOREN Naokazu MIYAMOTO Yoshimasa ISAWA
The superconducting bridges with constrictions as small as 0.5 µm were fabricated by high-quality Ba2YCu3Ox thin films on silicon with buffer layers. The observed I-V characteristics of this bridge could be successfully analyzed by the modified form of Aslamazov and Larkin theory which shows that our microbridge junction is a homogeneous wide superconducting bridge and the characteristics of this bridge are not dependent on the defects such as grain boundaries of the film.