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Academic Journal
Authors: Rojas-Ramírez, J. S., Goldhahn, R., Moser, P., Huerta-Ruelas, J., Hernández-Rosas, J., López-López, M.
Superior Title: Journal of Applied Physics; Dec2008, Vol. 104 Issue 12, p124304, 5p, 1 Diagram, 1 Chart, 4 Graphs