T.A. Jung, Y.W. Mo, et al.
Physical Review Letters
Structure-dependent Si(2p) surface core-level shifts and 2p photothreshold spectra which yield new surface geometry information are reported. For Si(100)-(2×1), 0.5 monolayer of surface atoms are found shifted to smaller binding energy (-0.5 eV) relative to the bulk; this rules out symmetric pairing models. Si(111)-(7×7) and Si(111)-(2×1) show different surface 2p core-level spectra (e.g., 16 layer shifted -0.7 eV versus layer shifted - 0.4 eV), suggesting different geometries. Si(111)-(1×1)H exhibits first-layer (+ 0.26 eV) and second-layer (+ 0.15 eV) shifts. © 1980 The American Physical Society.
T.A. Jung, Y.W. Mo, et al.
Physical Review Letters
F.J. Himpsel, T.F. Heinz, et al.
Applied Surface Science
F.J. Himpsel
Applied Physics Letters
D. Straub, L. Ley, et al.
Physical Review Letters