Magneto-optical investigation of bi-crystalline thin films of Y-123

✍ Scribed by K. Guth; V. Born; Ch. Jooss

• Book ID: 103890397
• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 269 KB
• Volume: 408-410
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2004.03.061

✦ Synopsis

We have performed a deliberate study on the transport properties of Y-123 thin films on bi-crystalline substrates containing low angle grain boundaries (LAGBs). By magneto-optical (MO) imaging we are able to map the magnetic field and current distribution of wide current bridges. A quantitative analysis of the distribution of currents over the entire grain boundary (GB) is presented. We discuss the effects of magnetic history on the transport properties of Y-123 thin films with LAGBs. The results are compared with artificially created two-dimensional (2D) current distributions.