Fabrication and characterization of Bi1.84Pb0.34Sr1.91Ca2.03Cu3.06O10 superconductors prepared by a wet technique


Celebi S. , Karaca I., Ozturk A. , Nezir S.

JOURNAL OF ALLOYS AND COMPOUNDS, cilt.268, ss.256-260, 1998 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 268
  • Basım Tarihi: 1998
  • Doi Numarası: 10.1016/s0925-8388(97)00613-0
  • Dergi Adı: JOURNAL OF ALLOYS AND COMPOUNDS
  • Sayfa Sayıları: ss.256-260

Özet

We have carried out measurements of resistivity on Bi1.84Pb0.34Sr1.91Ca2.03Cu3.06O10 granular samples prepared by the liquid ammonium nitrate method. The standard four-probe technique was used to measure the resistivity and the critical current of the specimen. We estimated the irreversibility line from the broadening of the resistive-superconducting transition in external DC magnetic fields up to 447 mT for the sample fabricated. A non-linear Arrhenius plot of resistive tail has been found. The power law relation B-R(irr)=B-0(1-T/T-c)(3/2) gives a good fit to OUT data Obtained from zero-resistivity temperature in selected magnetic fields. We have also characterized the prepared samples in terms of XRD, SEM and critical currents. (C) 1998 Elsevier Science S.A.