Vortex creep perpendicular to the c-axis in crystalline and grain-oriented YBCO superconductor

I. M. Obaidat, M. Gharaibeh, B. A. Albiss, M. K. Hasan

Research output: Contribution to journalArticlepeer-review


Magnetization measurements were carried out on crystalline and grain-oriented YBa2Cu3O7-δ samples. We have measured the creep of magnetic flux lines along the a-axis (perpendicular to the c-axis) of the crystalline sample and perpendicular to the c-axis of a c-axis-grain-oriented polycrystalline sample. The measurements were done at 4.2 K and for magnetic fields in the range 1 kOe < H < 10 kOe. The magnetization M was found to decrease linearly with ln t in both samples for all the applied magnetic fields. With the initial increase of the applied magnetic field, the vortex pinning potential, Up, was found to decrease sharply in the grain-oriented sample, followed by a slow (almost linear) rate of decrease. In the crystalline sample, the rate of decrease of Up was found to be slow and linear for all applied magnetic fields.

Original languageEnglish
Pages (from-to)673-678
Number of pages6
JournalInternational Journal of Modern Physics B
Issue number5
Publication statusPublished - Feb 20 2009


  • Magnetization
  • Pinning potential
  • Vortex creep

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics


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