The Effect of Dy Doping on the Magnetic Behavior of YBCO Superconductors


ÖZTÜRK A. , Dogan M., DÜZGÜN İ., Celebi S.

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, cilt.29, ss.1787-1791, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 29 Konu: 7
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1007/s10948-016-3493-3
  • Dergi Adı: JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
  • Sayfa Sayıları: ss.1787-1791

Özet

The effect of dysprosium (Dy) doping on yttrium barium copper oxide (YBCO) prepared by conventional solid-state reaction method has been investigated by means of XRD, AC susceptibility, and DC magnetization measurements. AC susceptibility measurements for sintered YBCO pellets have been performed as a function of temperatures at constant frequency and AC field amplitude in the absence of a DC bias field. DC magnetization measurements were done at 5, 20, and 77 K upon zero field cooling (ZFC) process. The magnetization measurements showed a paramagnetic behavior existing at high magnetic fields. The magnetic field dependence of critical current density of the samples has been estimated from DC magnetization data. The partial Dy substitution for Y on YBCO superconductors improves the bulk critical current density at high magnetic fields and at high-temperature regions (higher than 20 K).