1.
Phys Rev Lett
; 85(4): 808-11, 2000 Jul 24.
Artigo
em Inglês
| MEDLINE
| ID: mdl-10991404
RESUMO
A strong, gold-induced surface state is found on single-domain Si(111)-(5x2)-Au at low temperatures. Its band dispersion is one dimensional near the Fermi level E(F) and gradually becomes two dimensional towards the bottom of the band, thus providing a model for a continuous transition in dimensionality. A Peierls-like gap is observed in the one-dimensional portion of the band near E(F).