High-T<sub>c</sub> SQUID microscope with sample chamber
Saburo Tanaka; Osamu Yamazaki; Ryoji Shimizu; Yusuke Saito; Saburo Tanaka; Ecological Engineering, Toyohashi University of Technology, Hibarigaoka Tempaku-cho Toyohashi Aichi 441-8580, Japan; Osamu Yamazaki; Ecological Engineering, Toyohashi University of Technology, Hibarigaoka Tempaku-cho Toyohashi Aichi 441-8580, Japan; Ryoji Shimizu; Ecological Engineering, Toyohashi University of Technology, Hibarigaoka Tempaku-cho Toyohashi Aichi 441-8580, Japan; Yusuke Saito; Ecological Engineering, Toyohashi University of Technology, Hibarigaoka Tempaku-cho Toyohashi Aichi 441-8580, Japan
Журнал:
Superconductor Science and Technology
Дата:
1999-11-01
Аннотация:
We have designed and constructed a high-T<sub>c</sub> superconducting quantum interference device (SQUID) microscope with a sample chamber isolated by a shutter. It can image magnetic distributions of samples at both room temperature and 77 K. According to our scheme, the separation of the sample from the SQUID can be less than a few micrometres, in principle. We have successfully imaged a trapped flux in a YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-y</sub> thin-film ring at 77 K and a printout of a laser printer at room temperature.
297.2Кб