Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1660213 | Surface and Coatings Technology | 2009 | 5 Pages |
Abstract
Ion implantation manufacture of superconducting magnesium diboride films of the MgB2 stoichiometry (B:Mg = 2:1 composition) by boron implantation in Mg wafers requires a precise knowledge of the implantation process properties, in particular of the partial sputtering yields of Mg atoms by B ions. To verify these yields experimentally we deposited thin Mg films on glassy carbon platelets and implanted them with high fluences of 40, 60, and 80 keV B+ ions. He-backscattering (RBS) spectrometry was used to determine before- and after-implantation depth profiles of Mg and B. The sputtering yields turned out to be small enough (< 0.1 atoms per ion) to neglect sputtering in simulations of the implanted profiles. The results of the simulations have been compared to RBS spectra recorded on samples treated with 3 energies/fluencies optimised for a wide plateau of the B:Mg = 2:1 stoichiometric composition.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Z. Werner, W. Szymczyk, J. Piekoszewski, M.P. Seah, R. Ratajczak, L. Nowicki, M. Barlak, E. Richter,