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Title: Rapid doubling of the critical current of YBa2Cu3O7-δ coated conductors for viable high-speed industrial processing

Here, we demonstrate that 3.5-MeV oxygen irradiation can markedly enhance the in-field critical current of commercial second generation superconducting tapes with an exposure time of just 1 s per 0.8 cm2. Furthermore we demonstrate how speed is now at the level required for an industrial reel-to-reel post-processing. The irradiation is made on production line samples through the protective silver coating and does not require any modification of the growth process. From TEM imaging, we identify small clusters as the main source of increased vortex pinning.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [4] ;  [4] ;  [5] ;  [5] ;  [6] ;  [6] ;  [7] ;  [7] ;  [1] ;  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Univ. of Illinois, Chicago, IL (United States). Dept. of Physics
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division; Univ. in Vienna (Austria). Atominstitut
  4. American Superconductor, Devens, MA (United States)
  5. Argonne National Lab. (ANL), Argonne, IL (United States). Electron Microscopy Center
  6. Materials Physics and Applications Division (MPA) & Condensed Matter adn Magnet Science (CMMS), Los Alamos, NM (United States)
  7. Western Michigan Univ., Kalamazoo MI (United States). Dept. of Physics
Publication Date:
OSTI Identifier:
1334128
Report Number(s):
LA-UR--15-27189
Journal ID: ISSN 0003-6951; APPLAB
Grant/Contract Number:
AC52-06NA25396; AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 107; Journal Issue: 19; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY