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Author (up) Haberkorn, N.; Jeehoon, Kim; Suárez, S; Lee, Jae-Hun; Moon, S.H. url  openurl
  Title Influence of random point defects introduced by proton irradiation on the flux creep rates and magnetic field dependence of the critical current density J c of co-evaporated GdBa 2 Cu 3 O 7− δ coated conductors Type Journal Article
  Year 2015 Publication Superconductor Science and Technology Abbreviated Journal Supercond. Sci. Technol.  
  Volume 28 Issue 12 Pages 125007  
  Keywords  
  Abstract We report the influence of random point defects introduced by 3 MeV proton irradiation (doses of 0.5 × 10 16 , 1 × 10 16 , 2 × 10 16 and 6 × 10 16 cm −2 ) on the vortex dynamics of co-evaporated 1.3 μ m thick, GdBa 2 Cu 3 O 7− δ coated conductors. Our results indicate that the inclusion of additional random point defects reduces the low field and enhances the in-field critical current densities J c . The main in-field J c enhancement takes place below 40 K, which is in agreement with the expectations for pinning by random point defects. In addition, our data show a slight though clear increase in flux creep rates as a function of irradiation fluence. Maley analysis indicates that this increment can be associated with a reduction in the exponent μ characterizing the glassy behavior.  
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  Series Volume Series Issue Edition  
  ISSN 0953-2048 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number BT @ pedrazp @ Serial 725  
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