Large voltage modulation in magnetic field sensors from two-dimensional arrays of Y-Ba-Cu-O nano Josephson junctions

Journal Article · Mon Feb 10 04:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4865216· OSTI ID:22283193

Dynes, R. C. ^[1]; Cho, E. Y.; Wong, T. J. ^[1]; Glyantsev, V. N.; Huh, J. U.; Yung, C. S.; Moeckly, B. H. ^[2]; Beeman, J. W.; Ulin-Avila, E.; Wu, S. M. ^[3]

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1. Department of Physics, University of California San Diego, La Jolla, California 92093 (United States)
2. Superconductor Technologies Inc., Santa Barbara, California 93111 (United States)
3. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

We have fabricated and tested two-dimensional arrays of YBa{sub 2}Cu{sub 3}O{sub 7−δ} superconducting quantum interference devices. The arrays contain over 36 000 nano Josephson junctions fabricated from ion irradiation of YBa{sub 2}Cu{sub 3}O{sub 7−δ} through narrow slits in a resist-mask that was patterned with electron beam lithography and reactive ion etching. Measurements of current-biased arrays in magnetic field exhibit large voltage modulations as high as 30 mV.

• OSTI ID: 22283193
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 6 Vol. 104; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM COMPOUNDS
CUPRATES
ELECTRIC POTENTIAL
ELECTRON BEAMS
ETCHING
HIGH-TC SUPERCONDUCTORS
ION BEAMS
IRRADIATION
JOSEPHSON JUNCTIONS
MAGNETIC FIELDS
MODULATION
PHYSICAL RADIATION EFFECTS
SENSORS
SQUID DEVICES
YTTRIUM COMPOUNDS