Title :
Single layer YBaCuO-gradiometer
Author :
Daalmans, G.M. ; Bar, L. ; Kuhnl, M. ; Uhl, D. ; Selent, M. ; Ramos, J.
Author_Institution :
Corp. Res. & Dev., Siemens AG, Erlangen, Germany
fDate :
6/1/1995 12:00:00 AM
Abstract :
A single layer YBaCuO-gradiometer galvanically coupled to DC-SQUIDs were prepared on bicrystal substrates. The devices were operated at 77 K without any shielding. The best performance obtained was a field gradient resolution of 0.5 pT/cm/spl radic/(Hz) for a device with a baseline of 7 mm and a pickup-area of 2 cm/sup 2/.<>
Keywords :
SQUID magnetometers; barium compounds; high-temperature superconductors; superconducting thin films; yttrium compounds; 77 K; DC-SQUID; HTS gradiometer; HTSC film; YBaCuO; bicrystal substrates; galvanic coupling; single layer YBCO; Earth; Galvanizing; Grain boundaries; High temperature superconductors; Low-frequency noise; Magnetic fields; Nonhomogeneous media; Pulsed laser deposition; SQUIDs; Superconducting epitaxial layers;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
