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

✍ Scribed by V.V. Yurchenko; R. Wördenweber; Yu.M. Galperin; D.V. Shantsev; J.I. Vestgården; T.H. Johansen

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 283 KB
• Volume: 437-438
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2005.12.075

✦ Synopsis

We present the results of experiments on visualization of magnetic flux distribution and its dynamics in high-temperature superconductors with artificial defects. High-T c superconductor thin films were equipped with a special arrangement of antidots in order to separate the streams of magnetic flux moving in (or out of) the sample. A possibility to alter the direction and depth of flux penetration is clearly demonstrated by means of magneto-optical imaging. The resolution was sufficient for observation of flux in particular antidots, which allows more detailed dynamic analysis of such systems.