Oxygen and hydrogen plasma effects on the MgB2 superconductivity

J. K. Jung, K. W. Lee, W. Lee, Cheol Eui Lee, S. J. Noh, H. S. Kim

Research output: Contribution to journalArticle

Abstract

Oxygen and hydrogen plasma effects on the superconductivity in MgB 2 were investigated. As a result, the critical current density was found to increase by the plasma treatments by an order of magnitude at zero applied magnetic field. The electrical resistivity showed a decrease in the superconducting transition temperature after the plasma treatments, whereas the magnetic susceptibility did not show a change in the transition temperature, indicating percolation of the supercurrent among the superconducting islands in the plasma-treated samples.

Original languageEnglish
Pages (from-to)555-558
Number of pages4
JournalCurrent Applied Physics
Volume11
Issue number3
DOIs
Publication statusPublished - 2011 May

Keywords

  • Defects
  • Magnetic properties
  • MgB$-2$ superconductor
  • Plasma effects

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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