Chirality induction in bulk gold and silver

The induction of chirality in metallic gold and silver has been demonstrated by the doping of these metals with a chiral organic molecules. Consistent chiral asymmetry was observed in the photoemission of electrons from gold and silver embedded with chiral biomolecules including L-glutathione, L-quinine, and tryptophan. Counter-clockwise circularly polarized light (ccw-CPL) and clockwise CPL (cw-CPL) induce different photoelectron emission yields from the doped metal, thus exhibit different diastereomeric interactions between light and the metal electrons. All possible diastereomeric interactions that were observed between ccw-CPL and cw-CPL and dopants supported that the dopant-nduced chirality was real and significant.