Ion beam synthesis of superconducting MgB[sub 2] thin films

Peng, Nianhua; Shao, G.; Jeynes, C.; Webb, R. P.; Gwilliam, R. M.; Boudreault, G.; Astill, D. M.; Liang, W. Y.
January 2003
Applied Physics Letters;1/13/2003, Vol. 82 Issue 2, p236
Academic Journal
Superconducting MgB[sub 2] thin films have been fabricated by 80 keV [sup 11]B ion implantation into commercial Mg ribbon with [sup 11]B doses up to 10[sup 18] ions/cm², followed by thermal annealing at 500 °C. Temperature dependent dc magnetization measurements confirmed superconducting phase transitions between 11 and 18 K for samples containing nanocrystalline MgB[sub 2] grains embedded in Mg substrate with a small amount of MgO inclusion.


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