First-principles calculations of circular dichroism of ligand-protected gold nanoparticles F. Hidalgo, A. Sánchez-Castillo, I. L. Garzón and C. Noguez Eur. Phys. J. D, 52 1-3 (2009) 179-182 Published online: 24 January 2009 DOI: 10.1140/epjd/e2008-00271-3