Speaker: Stefan Tautz, Peter Grünberg Institute (PGI-3), Forschungszentrum Jülich & Jülich Aachen Research Alliance (JARA)
Date & Time: October 8, 2015, 2:00 - 3:00
Location: Hennings 318
Local Contact: Sarah Burke
Intended Audience: Graduate
Imaging surface adsorbed molecules as precisely as possible is a fascinating goal, the attainment of which promises to open up many new possibilities in nanoscale engineering. For some time, scanning probe methods have been employed to image the electronic structure (scanning tunnelling microscopy) and, more recently, the geometric structure (atomic force microscopy) and charge distribution (Kelvin probe force microscopy) of molecules in real space. On the other hand, the orbital tomography method under certain conditions allows the reconstruction of molecular wave functions, including their phase, in real space from the photoelectron distribution in reciprocal space (angle resolved photoelectron spectroscopy). In this talk I will discuss challenges, open questions, and recent advances in imaging molecules on surfaces with scanning probe microscopies as well as orbital tomography. From a combination of the various approaches, a comprehensive characterization of molecular properties and interactions at the level of single molecules is beginning to emerge.