Potential energy landscape of metallic Moiré patterns

Details Potential energy landscape of metallic Moiré patterns Potential energy landscape of metallic Moiré patterns

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009njph...11k3051b&link_type=abstract

New Journal of Physics, Volume 11, Issue 11, pp. 113051 (2009).

Physics

3

Scientific paper

The modulation of the electronic structure of cobalt islands on Cu(111) by the Moiré pattern of an Ag overlayer is investigated. Acquisition of tunneling spectroscopy maps reveals a local modification of both the energy and the amplitude of the cobalt-related d-states on the length scale of the periodicity of the Moiré superstructure. The modulation of the energy can be rationalized by the spatially varying hybridization of the cobalt atoms with the silver sp-bands. We propose that Moiré modulated d-states at metal interfaces with a periodicity of a few nanometers may provide a novel route to manipulate the chemical reactivity of surfaces and might serve as a template which modulates magnetic properties such as the spin density.

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