Evidence for composition variations and impurity segregation at grain boundaries in high current-density polycrystalline K- and Co-doped BaFe2As2 superconductors

نویسندگان

  • Yoon-Jun Kim
  • Jeremy D. Weiss
  • Eric E. Hellstrom
  • David C. Larbalestier
  • David N. Seidman
چکیده

Articles you may be interested in Transport critical current measurements on a Cu-substituted BaFe2As2 superconductor Increased grain boundary critical current density J c gb by Pr-doping in pulsed laser–deposited Y1−x Pr x BCO thin films Direct observation of nanometer-scale amorphous layers and oxide crystallites at grain boundaries in polycrystalline Sr 1 − x K x Fe 2 As 2 superconductors Appl. Magnetoresistance, critical current density, and magnetic flux pinning mechanism in nickel doped BaFe2As2 single crystals

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تاریخ انتشار 2014