Optical absorption by magnesia-supported gold clusters and nanocatalysts: effects from the support, cluster and adsorbants

Michael Walter, Hannu Häkkinen

Polarization-resolved optical spectra of magnesia-supported gold clusters Au${}_N$/MgO (N=1,2,4,8), bound at a surface color center $F_s$ of the MgO(100) face, are calculated from th…