Title :
High-T/sub c/ SQUID microscope for room temperature samples
Author :
Lee, T.S. ; Chemla, Y.R. ; Dantsker, E. ; Clarke, J.
Author_Institution :
Dept. of Phys., California Univ., Berkeley, CA, USA
fDate :
6/1/1997 12:00:00 AM
Abstract :
A high-T/sub c/ SQUID microscope has been constructed for imaging samples at room temperature and atmospheric pressure. The SQUID is mounted on the upper end of a sapphire rod, cooled to liquid nitrogen temperature, below a 3-/spl mu/m thick silicon nitride vacuum window. This arrangement yields a SQUID-to-sample separation as low as 15 /spl mu/m. A sample can be placed on the window or scanned over the SQUID to produce magnetic images.
Keywords :
SQUID magnetometers; high-temperature superconductors; microscopy; atmospheric pressure; high-T/sub c/ superconductor; magnetic imaging; room temperature sample; sapphire rod; scanning SQUID microscope; silicon nitride vacuum window; Fingers; Laboratories; Magnetic separation; Microscopy; Nitrogen; Physics; SQUIDs; Silicon; Spatial resolution; Temperature;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
