Superconducting properties of MgB2 bulks processed in high magnetic fields

Aixia Xu, Yanwei Ma, Xianping Zhang, Xiaohang Li, G. Nishijima, S. Awaji, K. Watanabe

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

MgB2 bulk samples were synthesized by the solid-reaction process in high magnetic fields. The effect of magnetic fields on the microstructure and superconducting properties of MgB2 tapes has been investigated by using X-ray diffraction, scanning electron microscope and magnetic measurements. Under the application of an 8 T magnetic field, the critical transition temperature, Tc, remained unchanged, and the critical current density, Jc was enhanced by a factor of more than 2 for both temperatures of ∼5 K and 20 K. The experimental results suggested that the high magnetic field is effective for improving Jc of MgB2 superconductors.

Original languageEnglish
Pages (from-to)811-813
Number of pages3
JournalPhysica C: Superconductivity and its applications
Volume445-448
Issue number1-2
DOIs
Publication statusPublished - 2006 Oct 1

Keywords

  • Critical current density J
  • Magnetic-field annealing
  • MgB

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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