Surface electronic structure study of Au/Si(111) reconstructions: Observation of a crystal-to-glass transition
2002 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 66, no 16Article in journal (Refereed) Published
The α-√3×√3, β-√3×√3, and 6×6 surfaces of Au/Si(111) have been studied by angle-resolved photoelectron spectroscopy (ARPES). The α-√3×√3 surface shows four surface state bands, one of which is a dispersing metallic band. Except for one nondispersing band near the Fermi level, the β-√3×√3 surface shows surface bands that are similar to those of α-√3×√3. Eight surface state bands have been found on the 6×6 surface instead of two as reported in the literature. Seven of these surface states are broadened into three, when the 6×6 phase is transformed into the quenched β-√3×√3 phase just by annealing followed by quick cooling. The transition between the 6×6 and quenched β-√3×√3 phases is consistent with a crystal-glass transition.
Place, publisher, year, edition, pages
2002. Vol. 66, no 16
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-47837DOI: 10.1103/PhysRevB.66.165402ISI: 000179286400112OAI: oai:DiVA.org:liu-47837DiVA: diva2:268733