On the thermodynamic critical field in MgB2 superconductor

Kh A. Ziq*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The thermodynamic critical field Hc has been obtained from the equilibrium magnetization of MgB2 superconductor. The entire hysteresis loops have been found to scale with Hc such that the M/Hc, curves follow closely universal behavior over a wide temperature range. The peaks in the pinning force curves have been found to scale with the vortex line energy as (Hc)2. Moreover, the positions of the normalized Fp(max) occur at about 0.1Hirr significantly lower than what is expected from Dew-Hughes model.

Original languageEnglish
Pages (from-to)265-268
Number of pages4
JournalJournal of Alloys and Compounds
Volume397
Issue number1-2
DOIs
StatePublished - 19 Jul 2005

Keywords

  • Flux pinning
  • Reversible magnetization
  • Scaling behavior

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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