Abstract
We observed a hysteretic current–voltage ( I–V ) characteristic on lateral type intrinsic Josephson junction using Y1Ba2Cu3O7-δ films. An a-axis oriented needle-like grain surrounded by c-axis oriented grains is used for the junctions. The junctions using as-grown films show resistively shunted junction (RSJ) type I–V characteristics. After appropriate annealing in pure Ar-gas, this junction property changes to hysteretic I–V characteristics with several voltage jumps from no hysteresis. It is explained that conductivity of the CuO chain decreases by the annealing.
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