Localized molecular constraint on electron delocalization in a metallic chain

An artificial quantum structure consisting of a single CO molecule adsorbed on a Au chain was assembled by manipulating single Au atoms on NiAl(110) at 12 K with a scanning tunneling microscope (STM). The CO disrupts the delocalization of electron density waves in the chain, as it suppresses the cou...

Full description

Saved in:
Bibliographic Details
Published inPhysical review letters Vol. 90; no. 18; p. 186102
Main Authors Nilius, N, Wallis, T M, Ho, W
Format Journal Article
LanguageEnglish
Published United States 09.05.2003
Online AccessGet more information

Cover

More Information
Summary:An artificial quantum structure consisting of a single CO molecule adsorbed on a Au chain was assembled by manipulating single Au atoms on NiAl(110) at 12 K with a scanning tunneling microscope (STM). The CO disrupts the delocalization of electron density waves in the chain, as it suppresses the coupling between neighboring chain atoms. The possibility to specify the CO position on the chain allows controlled modification of the electronic properties in a quantum system. Inelastic electron tunneling spectroscopy with the STM provides vibrational characterization of the adsorbed CO.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.90.186102