Physics – Condensed Matter – Superconductivity
Scientific paper
2000-01-11
Physica C 341-348 (2000), 2645.
Physics
Condensed Matter
Superconductivity
4 pages, 8 figure files, espcrc2.sty, invited contribution to "Materials and Mechanisms of Superconductivity and High Temperat
Scientific paper
Thin stacks consisting of a single intrinsic Josephson junction on (Bi,Pb)-Sr-Ca-Cu-O thin films are investigated under the influence of external microwave fields. The $I$-$V$-characteristic shows a single resistive branch, a clear superconducting gap edge structure and a pronounced current step in external microwave fields. With increasing irradiation power it shifts to higher voltages, while the height of the step remains practically unchanged. In a numerical simulation including an ac-magnetic field parallel to the superconducting layers the experimental features of the structure can be explained by a collective motion of Josephson fluxons.
Adachi Hiroto
Helm Ch.
Odagawa A.
Sakai Makoto
Setsune K.
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