Probing molecular spins at surfaces
DIPC Seminars
- Speaker
-
Richard Berndt, Christian-Albrechts-Universität zu Kiel, Germany
- When
-
2023/02/17
13:00 - Place
- Donostia International Physics Center
- Add to calendar
-
iCal
Using low-temperature scanning tunneling microscopy and occasionally
synchrotron radiation methods we investigate molecules at surfaces. The
experiments reveal molecular spin states and electron transport properties as
well as intermolecular interactions. This talk will address spin related
phenomena such as spin-state switching in spincrossover compounds. We further
demonstrate that
diamagnetic molecules can acquire a spin when they are arranged into suitable
supramolecules on superconducting Pb. As a consequence, sharp resonances
develop in the superconductor gap. We harness them to enhance inelastic
tunneling spectroscopy of molecular vibrations. This new methods drastically
enhances the sensitivity and also improves the energy resolution beyond the
thermal
broadening limit. It may help to further probe the interaction of molecules
with their environment and to better understand selection rules for
vibrational excitation.
Host: Aran Garcia-Lekue