Properties of chemical-vapor-deposition-prepared MgB2 thin films

Superconducting MgB2 thin films have been prepared on MgO (111) substrates through a combined approach of chemical vapor deposition of boron and magnesium vapor diffusion. The resulting MgB2 thin films are pure-phase and polycrystalline. Both resistance and d.c. magnetization measurements of the MgB...

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Bibliographic Details
Published in:Thin solid films 2003-10, Vol.443 (1-2), p.120-123
Main Authors: WANG, Shu-Fang, ZHOU, Yue-Liang, ZHU, Ya-Bin, ZHEN LIU, QIN ZHANG, CHEN, Zheng-Hao, LU, Hui-Bin, DAI, Shou-Yu, YANG, Guo-Zhen
Format: Article
Language:English
Subjects:
Chemical vapor deposition (including plasma-enhanced cvd, mocvd, etc.)
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
High-tc films
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Physics
Superconducting films and low-dimensional structures
Superconductivity
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Summary:Superconducting MgB2 thin films have been prepared on MgO (111) substrates through a combined approach of chemical vapor deposition of boron and magnesium vapor diffusion. The resulting MgB2 thin films are pure-phase and polycrystalline. Both resistance and d.c. magnetization measurements of the MgB2 films show a superconducting transition temperature Tc of 38 K with a narrow width of approximately 0.1 K. Magnetic hysteresis measurements yield critical current density Jc > 107 A/cm2 at 10 K and 0 T.
ISSN:0040-6090
1879-2731
DOI:10.1016/S0040-6090(03)01034-4