Scanning SQUID microscopy is a technique where a superconducting quantum interference device (SQUID) is used to image surface magnetic field strength with micrometre scale resolution. A tiny SQUID is mounted onto a tip which is then rastered near the surface of the sample to be measured. As the SQUID is the most sensitive detector of magnetic fields available and can be constructed at submicrometre widths via lithography, the scanning SQUID microscope allows magnetic fields to be measured with unparalleled resolution and sensitivity. The first scanning SQUID microscope was built in 1992 by Black et al.. Since then the technique has been used to confirm unconventional superconductity in several high-temperature superconductors including YBCO and BSCCO compounds.
Read more about Scanning SQUID Microscopy: Operating Principles, Instrumentation, Operation, Applications, See Also
Famous quotes containing the word squid:
“air or vacuum, snow or shale, squid or wolf, rose or lichen,
each is accepted into as much light as it will take,”
—Archie Randolph Ammons (b. 1926)