Other version: http://prola.aps.org/pdf/PRL/v69/i4/p648_1
Do we know the true structure of Ge(111)c(2x8) ?
|Published in||Physical Review Letters. 1992, vol. 69, no. 4, p. 648-651|
|Abstract||We present the first ab initio determination of the surface structure and electronic properties of Ge(111)c(2×8). New features emerge, in addition to the basic adatom–rest-atom architecture. In agreement with LEED, which shows weak but nonvanishing quarter-order reflections, we find that an asymmetry is present in the surface unit cell, related to a small buckling between the two rest atoms, as well as to in-plane asymmetries of the rest atoms, adatoms, and first bilayer atoms. This inequivalance also produces a splitting of both the rest-atom and the adatom dangling-bond states, which explains the difference in their apparent heights as seen recently with scanning tunneling microscopy.|
|Research group||Groupe Weber|
|TAKEUCHI, Noboru, SELLONI, Annabella, TOSATTI, Erio. Do we know the true structure of Ge(111)c(2x8) ?. In: Physical Review Letters, 1992, vol. 69, n° 4, p. 648-651. https://archive-ouverte.unige.ch/unige:2914|