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 1

Fingerprint

oxygen plasma
hydrogen plasma
Superconductivity
Hydrogen
superconductivity
Oxygen
Plasmas
transition temperature
Superconducting transition temperature
critical current
Magnetic susceptibility
current density
magnetic permeability
electrical resistivity
Magnetic fields
magnetic fields

Keywords

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

ASJC Scopus subject areas

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

Cite this

Oxygen and hydrogen plasma effects on the MgB2 superconductivity. / Jung, J. K.; Lee, K. W.; Lee, W.; Lee, Cheol Eui; Noh, S. J.; Kim, H. S.

In: Current Applied Physics, Vol. 11, No. 3, 01.05.2011, p. 555-558.

Research output: Contribution to journalArticle

Jung, J. K. ; Lee, K. W. ; Lee, W. ; Lee, Cheol Eui ; Noh, S. J. ; Kim, H. S. / Oxygen and hydrogen plasma effects on the MgB2 superconductivity. In: Current Applied Physics. 2011 ; Vol. 11, No. 3. pp. 555-558.
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