Oxygen and hydrogen plasma effects on the MgB_2 superconductivity
Oxygen and hydrogen plasma effects on the MgB_2 superconductivity
- 주제(키워드) MgB$_2$ superconductor , Plasma effects , Magnetic properties , Defects
- 발행기관 한국물리학회
- 발행년도 2011
- 총서유형 Journal
- UCI G704-001115.2011.11.3.047
- KCI ID ART001553419
- 본문언어 영어
초록/요약
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.
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