A MAGNETICALLY COUPLED SQUID FOR THE DIGITAL READOUT OF INTEGRATED HTS CIRCUITS

Authors
HIDAKA M MIURA S SATOH T HATTORI W TSAI JS TAHARA S
Citation
M. Hidaka et al., A MAGNETICALLY COUPLED SQUID FOR THE DIGITAL READOUT OF INTEGRATED HTS CIRCUITS, Superconductor science and technology, 9(4A), 1996, pp. 62-65
Citations number
8
Categorie Soggetti
Physics, Applied","Physics, Condensed Matter
Journal title
Superconductor science and technology → ACNP
ISSN journal
09532048
Volume
9
Issue
4A
Year of publication
1996
Pages
62 - 65
Database
ISI
SICI code
0953-2048(1996)9:4A<62:AMCSFT>2.0.ZU;2-X
Abstract
A magnetically coupled SQUID (superconducting quantum interference dev ice) for the digital readout of integrated HTS (high-temperature super conductor) circuits has been developed and a multilayer integration pr ocess for HTS circuits was evaluated. We employed ramp edge junctions in this process; the SQUID's control line was formed using the counter layer of the junctions. Three ex situ epitaxial layers were grown. io n beam etchings were used for the base electrode and insulation layer without substrate rotation. Clear voltage modulation for the SQUID was observed up to 65 K. The critical current of the 4 mu m wide control line was 1.2 mA at 65 K.