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O: Fachverband Oberflächenphysik

O 31: Focus Session Molecular Nanostructures on Surfaces: On-Surface Synthesis and Single-Molecule Manipulation II

O 31.3: Hauptvortrag

Dienstag, 18. März 2025, 11:00–11:30, H24

Single molecule machines on surface — •Francesca Moresco — TU Dresden. Germany

Scanning tunneling microscopy is a unique experimental technique to control the motion of a single molecule, testing the boundary between classical and quantum movement and making thermodynamics at the scale of a single molecule accessible to experimental investigation. Under the tip of a scanning tunneling microscope, inelastic tunneling electrons or local electric fields can produce controlled rotations or translations of a single adsorbed molecule, while thermal excitation can modify the energy barrier for motion. In this talk, we will discuss the controlled rotation and translation of asymmetric and chiral model structures adsorbed on the Au(111) surface.

Keywords: STM, manipulation, inelastic tunneling