Events Calendar

 
Seminar

"Light-triggered electron dynamics and spin processes in complex materials" by Dr. Inga Ulusoy, University of Heidelberg

Wednesday, 19 June 2019, 13:30-15:00
KIT, Campus Nord
Institute of Nanotechnology
Bldg. 640 Seminar Room 0-167
Hermann-von-Helmholtz-Platz 1
76344 Eggenstein-Leopoldshafen

Talk given by

Dr. Inga Ulusoy

Institute of Physical Chemistry

University of Heidelberg

 

Abstract:

The motion of electrons in mocules occurs on the attosecond time scale, irrespective of 
the size of the molecule. Electron dynamics connect physics, chemistry and biology and 
can fundamentally influence processes in all three domains. Of particular interest are 
processes that can be triggered by light and lead to very distinct outcomes, influencing 
the properties of materials on the macroscopic scale. One example involves light-triggered 
spin conversion in transition metal compounds, where a controlled spin-flip opens 
promising avenues in areas such as sensing, information technology, molecular switches 
and energy technology. 

In this talk, insights from a theoretical viewpoint as obtained through relativistic electron 
dynamics will be used to explain key aspects in spin trapping that takes place in iron 
compounds. Furthermore, electron motion in molecules as initiated through a laser pulse 
can be used to trigger a response from the nuclei, directing the outcome of a chemical 
reaction. The generated electron-nuclear wave packets can quickly decohere, but also lead 
to recurrence of coherences that manifest in a quantum beating. Finally, static 
electromagnetic fields can be used to tune properties of the materials.  

 
This event is part of the eventgroup INT Talks
Speaker
Dr. Inga Ulusoy

University of Heidelberg
Physikalisch-Chemisches Institut
Organizer
Prof. Dr. Martin Wegener
Angewandte Physik und Institut für Nanotechnologie
Karlsruher Institut für Technologie (KIT)
Karlsruhe
Mail: martin wegener does-not-exist.kit edu
https://www.aph.kit.edu/wegener/
Targetgroup
Interested / Everyone
Service-Menu