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Savio Fabretti Patrick Thomas Markus Meinert Inga-Mareen Imort Andy Thomas 《Journal of Superconductivity and Novel Magnetism》2013,26(5):1879-1882
We fabricated superconducting MgB2 thin films on (001) MgO substrates by magnetron rf and dc co-sputtering on heated substrates. We annealed the samples ex-situ and in-situ at temperatures between 450 °C and 750 °C. The substrate temperature during the sputtering process and the post annealing temperatures play a crucial role in forming MgB2 superconducting thin films. We achieved a critical onset temperature of up to 27.1 K for the ex-situ and 25.6 K for the in-situ annealed samples at a film thickness of 30 nm. The samples shows an out of plane (0002)-Peak which was determined by x-ray diffraction. 相似文献
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