Intrinsic Josephson effects in ${Bi}_{2}$ ${Sr}_{2}$ ${CaCu}_{2}$ $O_{8}$ single crystals

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13 April 1992

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 68 (15) , 2394-2397
https://doi.org/10.1103/physrevlett.68.2394

Abstract

We have observed Josephson coupling between CuO double layers in

{Bi}_{2}

{Sr}_{2}

{CaCu}_{2}

O_{8}

single crystals by direct measurements of ac and dc Josephson effects with current flow along the c axis. The results show that a small

{Bi}_{2}

{Sr}_{2}

{CaCu}_{2}

O_{8}

single crystal behaves like a series array of Josephson junctions which can exhibit mutual phase locking.

Keywords

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