| Literature DB >> 12786093 |
J N Crain1, A Kirakosian, K N Altmann, C Bromberger, S C Erwin, J L McChesney, J-L Lin, F J Himpsel.
Abstract
A new chain structure of Au is found on stepped Si(111) which exhibits a 1/4-filled band and a pair of > or =1/2-filled bands with a combined filling of 4/3. Band dispersions and Fermi surfaces for Si(553)-Au are obtained by photoemission and compared to that of Si(557)-Au. The dimensionality of both systems is determined using a tight binding fit. The fractional band filling makes it possible to preserve metallicity in the presence of strong correlations.Entities:
Year: 2003 PMID： 12786093 DOI： 10.1103/PhysRevLett.90.176805
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161