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

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

2005-11-02

arxiv.org/abs/cond-mat/0511060v1

Physica C 437-438, 357-360 (2006)

Physics

Condensed Matter

Superconductivity

4 pages, 5 figures, submitted to Physica C, Proc. of VORTEX-IV Workshop on Crete-2005

Scientific paper

10.1016/j.physc.2005.12.075

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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