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

doi:10.1016/j.cap.2010.09.015

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	555-558
Number of pages	4
Journal	Current Applied Physics
Volume	11
Issue number	3
DOIs	https://doi.org/10.1016/j.cap.2010.09.015
Publication status	Published - 2011 May

Keywords

Defects
Magnetic properties
MgB$-2$ superconductor
Plasma effects

ASJC Scopus subject areas

Materials Science(all)
Physics and Astronomy(all)

Access to Document

10.1016/j.cap.2010.09.015

Cite this

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title = "Oxygen and hydrogen plasma effects on the MgB2 superconductivity",

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.",

keywords = "Defects, Magnetic properties, MgB$-2$ superconductor, Plasma effects",

author = "Jung, {J. K.} and Lee, {K. W.} and W. Lee and Lee, {Cheol Eui} and Noh, {S. J.} and Kim, {H. S.}",

note = "Funding Information: This work was supported by a Korea University Grant and by the Korea Ministry of Education, Science and Technology (NRL Program R0A-2008-000-20066-0 and Project No. 20090082672). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.",

year = "2011",

month = may,

doi = "10.1016/j.cap.2010.09.015",

language = "English",

volume = "11",

pages = "555--558",

journal = "Current Applied Physics",

issn = "1567-1739",

publisher = "Elsevier",

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TY - JOUR

T1 - Oxygen and hydrogen plasma effects on the MgB2 superconductivity

AU - Jung, J. K.

AU - Lee, K. W.

AU - Lee, W.

AU - Lee, Cheol Eui

AU - Noh, S. J.

AU - Kim, H. S.

N1 - Funding Information: This work was supported by a Korea University Grant and by the Korea Ministry of Education, Science and Technology (NRL Program R0A-2008-000-20066-0 and Project No. 20090082672). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.

PY - 2011/5

Y1 - 2011/5

N2 - 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.

AB - 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.

KW - Defects

KW - Magnetic properties

KW - MgB$-2$ superconductor

KW - Plasma effects

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DO - 10.1016/j.cap.2010.09.015

M3 - Article

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SN - 1567-1739

VL - 11

SP - 555

EP - 558

JO - Current Applied Physics

JF - Current Applied Physics

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