High-energy photoelectron holography for an adsorbate test system:c(2×2)S on Ni(001)
- 1 February 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 70 (5) , 595-598
- https://doi.org/10.1103/physrevlett.70.595
Abstract
We have measured and calculated the intensity profiles for S 2p photoemission at 1327 eV from the well-defined adsorbate system, c(2×2)S on Ni(001), and have analyzed these via several holographic imaging procedures. Images of nearest-neighbor S atoms are clearly seen in both experiment and theory, and their positions are improved if effects due to twin images are suppressed by analyzing only a half hologram. Image positions are further improved to within ±0.2–0.3 Å with corrections for scattered-wave amplitudes and phase shifts.Keywords
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