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Download fileAnisotropic Resistance of the Clean and Oxygen-Covered Cu(110) Surface in the Infrared
journal contribution
posted on 2012-07-05, 00:00 authored by Jan Pischel, Olaf Skibbe, Annemarie PucciWith mid-infrared spectroscopy at room temperature, we
investigated
the adsorption of oxygen on the clean, single-crystalline Cu(110)
surface resulting in the well-known (2 × 1)O–Cu(110) added-row reconstruction. We observed an anisotropic change
of broadband reflectance which corresponds to an anisotropic surface
resistance change. The resistance change is more pronounced by a factor
of 7 for the plane of light incidence parallel to the [11̅0]
direction. However, even perpendicular to this direction, a small
but significant change is observed. A qualitative explanation of the
anisotropic baseline shift can be given within existing theory, but
for a quantitative description anisotropic electronic scattering of
the bulk is crucial. Our results may be relevant for the optical behavior
of nanocrystallites.