Dresden 2006 – wissenschaftliches Programm
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TT: Tiefe Temperaturen
TT 7: Superconductivity & Solids At Low Temperature - Poster Session
TT 7.52: Poster
Montag, 27. März 2006, 14:00–17:45, P1
Characterization and Noise-Measurements on HTSC-Flip-Chip-Gradiometers with Different Antennas — •Tobias Foerster1, Henrik Schneidewind2, Christoph Becker1, Veit Grosse1, Ralf Bechstein1, Frank Schmidl 1, and Paul Seidel1 — 1Institut für Festkörperphysik, Friedrich-Schiller-Universität Jena, Helmholtzweg 5, D 07743 Jena — 2Institut für Physikalische Hochtechnologie e.V.(IPHT), Bereich Magnetik-Quantenelektronik, Albert-Einstein-Straße 9, D 07745 Jena
To optimize our HTSC-dc-SQUID gradiometric sensors with galvanically coupled antennas we investigated the performance of antennas on a separate substrate. These antennas are connected to a dc-SQUID-gradiometer in a Flip-Chip-Configuration.
Different combinations of thin-film and substrate materials, like TBCCO on Al2O3 or LaAlO3 and YBCO on SrTiO3, were used to produce antennas with variable layouts. The antennas were characterized concerning their critical current densities, critical temperature and noise properties to demonstrate their suitability for high resolution magnetic measurements in a Flip-Chip-Configuration.
Field-Gradient-Resolution and noise properties of multiple Flip-Chip-Sensors where then determined and compared.