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

STM

Författare

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 5 056803-

Styrkeområden

Nanovetenskap och nanoteknik

Materialvetenskap

Ämneskategorier

Fysik

Den kondenserade materiens fysik

Fundament

Grundläggande vetenskaper