The Journal of Chemical Physics · 2004 · 15 citations · 12 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsMaterials PhysicsSurface ScienceElectronic SpectroscopyElectronic StructureQuantum TunnelingSelf-assembled NanostructuresSelf-assembly Of NanomaterialsSurface PhysicsConductanceDelocalized Electron SystemsElectronic Density Of StatesFermi LevelImpuritiesInterfacial Electronic StructureScanning Tunneling SpectroscopySelf-assembled Electronic Structures
Artificial Au atomic chains with individual Pd impurities were assembled from single metal atoms with a scanning tunneling microscope on a NiAl(110) surface. Scanning tunneling spectroscopy (STS) revealed an electronic resonance 2.15 eV above the Fermi energy localized within 4 A of single Pd atom impurities and two electronic resonances 2.25 eV and 2.95 eV above the Fermi energy localized within 8 A of Pd dimer impurities. The emergence of these localized resonances was studied by STS at each stage of the atom-by-atom assembly. Additionally, conductance images of the chains revealed delocalized electronic density oscillations in the pure Au segments of the chains.
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Development of One-Dimensional Band Structure in Artificial Gold Chains
Niklas Nilius, Thomas M. Wallis, W. Ho · Science · 2002 · 457 citations
Scattering and absorption of surface electron waves in quantum corrals
Eric J. Heller, Michael F. Crommie, Christopher P. Lutz et al. · Nature · 1994 · 377 citations