Enhanced quantum interference effects in parallel Josephsonjunction arrays

Journal Article · Mon Dec 16 04:00:00 EST 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.105721· OSTI ID:6380287

Miller, Jr, J H; Gunaratne, G H; Huang, J; Golding, T D ^[1]

---

1. Department of Physics, Texas Center for Superconductivity, and Space Vacuum Epitaxy Center,University of Houston, Houston, Texas (USA)

We have calculated the total critical current as a function of applied magnetic flux for a superconducting interferometer consisting of many Josephson junctions in parallel. An enhancement and narrowing of the periodic principal maxima in the critical current versus flux characteristic is predicted as the number of junctions in parallel increases, even when the effects of finite self- and mutual inductances and nonuniformity of the junction critical currents are included in the calculations. The possible application of the superconducting quantum interference grating, or SQUIG, for the detection of magnetic flux is discussed.

• OSTI ID: 6380287
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 59:25; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRITICAL CURRENT
CURRENTS
DESIGN
ELECTRIC CURRENTS
ELECTRONIC EQUIPMENT
EQUIPMENT
FLUXMETERS
GRATINGS
INTERFERENCE
MAGNETIC FLUX
MAGNETOMETERS
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
PARAMETRIC ANALYSIS
SENSITIVITY
SQUID DEVICES
SUPERCONDUCTING DEVICES