Quantum confinement in monatomic Cu chains on Cu(111)
Artikel i vetenskaplig tidskrift, 2004

The quantum confinement in surface-supported atomic-scale metal chains was demonstrated, characterized by a pseudogap in the projected bulk band structure of the substrate. Low-temperature scanning tunneling spectroscopy and density functional theory (DFT) calculations were used for the study. The chain-localized electron dynamics showed that the dispersion was fully described within a ID tight-binding approach. The results confirm the confinement of unoccupied states to the chain in the relevant energy range, along with a significant extension of these states into the vacuum region.

density functional theory

one dimensional electron systems

surface state



Stefan Fölsch

Paul Drude Institut fur Festkorperelektronik

Per Hyldgaard

Chalmers, Teknisk fysik

R Koch

Paul Drude Institut fur Festkorperelektronik

K. H. Ploog

Paul Drude Institut fur Festkorperelektronik

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 92 056803-


Nanovetenskap och nanoteknik




Den kondenserade materiens fysik


Grundläggande vetenskaper