STUDY OF DYBACUO DC-SQUIDS FOR LOW-NOISE AND HIGH-FLUX FOCUSING

Authors
HIGASHINO Y UMEZAWA T
Citation
Y. Higashino et T. Umezawa, STUDY OF DYBACUO DC-SQUIDS FOR LOW-NOISE AND HIGH-FLUX FOCUSING, IEEE transactions on applied superconductivity, 5(2), 1995, pp. 2497-2500
Citations number
14
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on applied superconductivity → ACNP
ISSN journal
10518223
Volume
5
Issue
2
Year of publication
1995
Part
3
Pages
2497 - 2500
Database
ISI
SICI code
1051-8223(1995)5:2<2497:SODDFL>2.0.ZU;2-3
Abstract
We have fabricated DyBaCuO DC SQUIDs by MBE growth on MgO substrates c ontaining 45 degrees step-edge Josephson junctions, They showed RSJ-li ke current-Voltage characteristics and periodic modulation of Voltage aroused by an applied magnetic field at 77K. The flux resolution of th e 1.9mm square washer SQUID was measured to 3x10(-4) Phi(0)/Hz(1/2) at 1Hz, which corresponds to a magnetic field sensitivity of 14pT/Hz(1/2 ). Effective flux capture areas were investigated for varying SQUID si ze of washer and hole.