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Title: Triode for Magnetic Flux Quanta

In an electronic triode, the electron current emanating from the cathode is regulated by the electric potential on a grid between the cathode and the anode. Here we demonstrate a triode for single quantum magnetic field carriers, where the flow of individual magnetic vortices in a superconducting film is regulated by the magnetic potential of striae of soft magnetic strips deposited on the film surface. By rotating an applied in-plane field, the magnetic strip potential can be varied due to changes in the magnetic charges at the strip edges, allowing accelerated or retarded motion of magnetic vortices inside the superconductor. Scaling down our design and reducing the gap width between the magnetic stripes will enable controlled manipulation of individual vortices and creation of single flux quantum circuitry for novel high-speed low-power superconducting electronics.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Sciences Division
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Sciences Division; Federal Univ. of Sao Carlos (Brazil). Physics Dept.
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Sciences Division; Queens College, City Univ. of New York, Queens, NY (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanomaterials
Publication Date:
Grant/Contract Number:
AC02-06CH11357; 2015/06.085-3
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 6; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States); Federal Univ. of Sao Carlos (Brazil)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Sao Paulo Research Foundation (Brazil)
Contributing Orgs:
Queens College, City Univ. of New York, Queens, NY (United States)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; nanoscale devices; nanoscience and technology
OSTI Identifier:
1352672