High quality MgB2 thin films in-situ grown by dc magnetron sputtering
arXiv:cond-mat/0203322 · doi:10.1088/0953-2048/15/8/312
Abstract
Thin films of the recently discovered magnesium diboride (MgB2) intermetalic superconducting compound have been grown using a magnetron sputtering deposition technique followed by in-situ annealing at 830 C. High quality films were obtained on both sapphire and MgO substrates. The best films showed maximum Tc = 35 K (onset), a transition width of 0.5 K, a residual resistivity ratio up to 1.6, a low temperature critical current density Jc > 1 MA/cm2 and anisotropic critical field with gamma = 2.5 close to the values obtained for single crystals. The preparation technique can be easily scaled to produce large area in-situ films.
7 pages, 4 figures
References in corpus (13)
- Beyond Eliashberg superconductivity in MgB2: anharmonicity, two-phonon scattering, and multiple gaps
- Thin Film Magnesium Boride Superconductor with Very High Critical Current Density and Enhanced Irreversibility Field
- MgB2 superconducting thin films with a transition temperature of 39 Kelvin
- Single crystal MgB2 with anisotropic superconducting properties
- High current-carrying capability in c-axis-oriented superconducting MgB2 thin films
- Superconducting properties of well-shaped MgB2 single crystal
- Superconducting MgB(2) films via precursor post-processing approach
- Superconducting MgB2 thin films by pulsed laser deposition
- Superconducting properties of nanocrystalline MgB thin films made by an in situ annealing process
- Growth of c-oriented MgB2 thin films by Pulsed Laser Deposition: structural characterization and electronic anisotropy
- Superconducting magnesium diboride films on Silicon with Tc0 about 24K grown via vacuum annealing from stoichiometric precursors
- In-situ Magnesium Diboride Superconducting Thin Films grown by Pulsed Laser Deposition
- Electron transport properties of MgB2 in the normal state
Cited by in corpus (7)
- High-field superconductivity in alloyed MgB2 thin films
- Effect of two bands on critical fields in MgB2 thin films with various resistivity values
- Observation of a two-dimensional electron gas at the surface of annealed SrTiO3 single crystals by scanning tunneling spectroscopy
- Growth methods of c-axis oriented MgB2 thin films by pulsed laser deposition
- A sol-gel method for growing superconducting MgB2 films
- Microwave intermodulation distortion of MgB2 thin films
- Off-axis MgB2 films using an in situ annealing pulsed laser deposition method