Jpn. J. Appl. Phys. 31 (1992) pp. L829-L831 |Next Article| |Table of Contents|
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Observation of Josephson Junctionlike Behavior in Single-Crystal (Bi, Pb)2Sr2CaCu2Oy
Department of Electrical and Electronic Engineering, Faculty of Engineering, Utsunomiya University, Utsunomiya 321
1Department of Electrical and Electronic Engineering, Faculty of Engineering, Tottori University, Tottori 680
(Received March 4, 1992; accepted for publication May 16, 1992)
The dependences of critical current on the temperature and magnetic field and the current-voltage characteristics in response to incident microwave radiation are measured in the direction of the c-axis of the 80 K superconducting phase (Bi, Pb)2Sr2CaCu2Oy bulk single crystal. Josephson junctionlike behavior is successfully observed, and it shows that the single crystal itself is composed of Josephson junctions along the c-direction and that its electrical transport in this direction is limited by intrinsic tunnel barriers existing in the single crystal.
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