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Magneto-optical imaging of magnetic flux patterns in superconducting films with antidots

V. V. Yurchenko·R. Woerdenweber·Yu. M. Galperin·D. V. Shantsev·J. I. Vestgaarden·T. H. Johansen
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Abstract

Superconducting YBaCuO thin films were equipped with a special arrangement of antidots (holes) of 1 micron radius in order to guide the stream of magnetic flux moving in (or out of) the sample. The flux distribution and its dynamics were visualized using real-time magneto-optical imaging. It is clearly demonstrated that one-dimensional antidot arrays strongly facilitate propagation of magnetic flux. We also demonstrate a possibility to alter the direction of flux motion in a controlled way by special arrangement of intercepting antidot arrays. Our resolution was sufficient for observation of flux in particular antidots, which allows a more detailed dynamic analysis of such systems.

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V. V. Yurchenko, R. Woerdenweber, Yu. M. Galperin, D. V. Shantsev, J. I. Vestgaarden, T. H. Johansen. 2005-11-02. Magneto-optical imaging of magnetic flux patterns in superconducting films with antidots. https://doi.org/10.1016/j.physc.2005.12.075

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