Low-temperature scanning tunneling microscopy (LTSTM)
The objective is to explore and control quantum phenomena in individual nano- and sub-nanometer-scale structures at solid-vacuum interfaces. As an operative and analytical tool, low-temperature scanning tunneling microscopy (LTSTM) is used under ultrahigh vacuum conditions. This experimental technique combines the capability of local electronic spectroscopy (STS), local excitation by inelastic electron tunneling (IET), manipulation of single atoms/molecules at surfaces, and atom-by-atom engineering of individual nanostructures at cryogenic temperatures. Model systems of interest include structures with predefined size, geometry and chemical composition consisting of a small number of atoms and/or molecules and range down to single atoms and molecules interacting with their solid-state environment. We search for strategies to utilize new functionalities based on switching and conduction processes, electronic quantization effects, as well as magnetic behavior of atomic-scale composite structures.
Technique
Atom and molecule manipulation by low-temperature STM
Research
Atom manipulation and nanostructure engineering on III-V semiconductor surfaces
Single-molecule switching on semiconductor surfaces
Electronic confinement in two-dimensional metal nanostructures
Assembly and spectroscopy of monatomic Cu/Cu(111) quantum wires
Surface state localization by adatoms
Organic molecules interacting with assembled metal nanostructures
Members
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