Resumen:
Selected for the March 30, 2009 Vol 19, Issue 13 of Virtual Journal of NanoscaleScience & Technology. ISSN 1553-9644 American Institute of Physics and theAmerican Physical Society http://www.vjnano.org/E. Rufeil-Fiori, C. M. Sánchez, F. Y. Oliva, H. M. Pastawski, and P. R. Levstein.Physical Review A, 79, 3, 032324-1-8 (2009).