Temperature dependence of vortex flux pinning in melt-textured superconductors

I. A. Al-Omari*, M. K. Hasan, A. Rais, K. A. Azez

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Magnetic properties of melt-textured YBa2Cu3O 7 superconductor are studied at different temperatures from 77 K up to the critical temperature, TC = 91 K, using vibrating sample magnetometer. Initial magnetization curve is measured from the demagnetized state in an applied magnetic field from 0 to 13.5 kOe, followed by measuring the full hysteresis loop. This procedure is repeated at different temperatures between 77 and 91 K. In all the measurements, the magnetic field was applied along the ab-plane of the sample which is perpendicular to the c-axis. Within the framework of the Bean critical state model, our results show that the maximum pinning forces which are represented by the magnetization remanence at which the internal field is zero are found to decrease with increasing temperature and they obey the empirical scale law ΔM(emu/cm3)= 34 × (1- T/Tc)1/n, where n ≈ 2.9.

Original languageEnglish
Pages (from-to)1821-1823
Number of pages3
JournalPhysica Status Solidi C: Conferences
Issue number7
Publication statusPublished - 2004

ASJC Scopus subject areas

  • Condensed Matter Physics


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