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

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.
Authors:
;  [1] ;  [2] ; ;  [1] ; ; ; ;  [3] ; ; ;  [4]
  1. Department of Physics, University of California San Diego, La Jolla, California 92093 (United States)
  2. (United States)
  3. Superconductor Technologies Inc., Santa Barbara, California 93111 (United States)
  4. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
Publication Date:
OSTI Identifier:
22283193
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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