Abstract
The recently discovered superconductor MgB2 with Tc at 39 K has great potential in superconducting electronics. In this paper, we review the deposition techniques used for MgB2 thin films in the light of a thermodynamic study of the Mg-B system with the calculation of phase diagrams (CALPHAD) modeling technique. This thermodynamic study identifies a growth window in the pressure-temperature phase diagram, in which the magnesium pressure is very high for likely in situ growth temperatures. A Hybrid Physical-Chemical Vapor Deposition (HPCVD) technique that successfully achieves such a high Mg pressure is shown to produce in situ epitaxial MgB2 thin films with bulk superconducting properties.
Original language | English (US) |
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Pages (from-to) | 801-806 |
Number of pages | 6 |
Journal | Journal of Superconductivity and Novel Magnetism |
Volume | 16 |
Issue number | 5 |
State | Published - 2003 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics