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Ultrafast spectroscopy and time-dependent density functional theory
| Project type: | Research Project |
| Programme: | Mathematics and... |
| Call: | Mathematik und … Call 2004 |
| Start: | 01.07.2005 |
| Duration: | 4,00 years |
| Grant awarded: | 500.000 € |
| Keywords: | ultrafast spectroscopie, nano solid state physics, time dependent density functional theory, partial differential equations in relativistic quantum mechanics |
Norbert Mauser
Wolfgang Pauli Institute, Vienna
| Project partners: | Peter Weinberger (Vienna University of Technology, Computational Quantum Theory Group) Peter Markowich (University of Vienna, Institute for Mathematics) |
Important future aspects of nanotechnology will be based on ultrafast properties of nano-scaled matter, e.g. magnetic switching. The goal of this project is to develop a fully relativistic ab-initio scheme within the time-dependent (current) density functional theory, that describes ultrafast phenomena occurring on a time scale of femtoseconds (10-15 s) in magnetic nano-systems characterized by a length scale of less than 10 - 20 nanometers (1 nm=10-9 m), like ultrafast demagnetization processes seen in pump-probe experiments. The involved re-search groups have both expertise in analysis and numerics for models for matter interact-ing with fields, in particular the time-dependent Dirac-Maxwell equations (mathematicians) and in calculating the magneto-optical properties of layered systems etc. (physicists). The project will be in close collaboration with one of the “founding fathers” of Density Functional Theory, Vienna born Walter Kohn.
