SENSITIVE DC-SQUIDS AND MAGNETOMETERS USING STEP-EDGE JUNCTIONS

Authors
NIE JC CHEN L YANG T HUANG MQ WU PJ LIU GR LI L
Citation
Jc. Nie et al., SENSITIVE DC-SQUIDS AND MAGNETOMETERS USING STEP-EDGE JUNCTIONS, Physica. C, Superconductivity, 282, 1997, pp. 2477-2478
Citations number
3
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
282
Year of publication
1997
Part
4
Pages
2477 - 2478
Database
ISI
SICI code
0921-4534(1997)282:<2477:SDAMUS>2.0.ZU;2-G
Abstract
Superconducting quantum interference devices (SQUIDs) using YBa2Cu3O7 step-edge grain boundary junctions on LaAlO3 substrates were fabricate d. The I-V and V-phi characteristics of these step-junction dc-SQUIDs were studied. At 77K, a square washer configuration with inductance L- s=150 pH yields flux noise of about 5.08x10(-5)phi(0)/root Hz, corresp onding to a magnetic field and energy resolutions were 270 fT/root Hz and 3.68x10(-29) J/Hz respectively above 100 Hz.