Group Tzschaschel

We are interested in understanding and controlling emerging magnetic and electronic functionalities in antiferromagnets, topological magnets, and other systems with unconventional magnetism. Our group employs near-infrared femtosecond laser spectroscopy to gain full access to a multidimensional parameter space covering energy in spectroscopic measurements, time in probing ultrafast dynamics, and space in locally resolving functionalities through imaging.

A particular focus of our work is on ultrafast processes arising from magneto-electric coupling phenomena in quantum materials in and out of equilibrium. Using optical approaches for the targeted optical manipulation of magnetic or electronic degrees of freedom with sub-picosecond time resolution we aim to disentangle the strongly correlated dynamics and realize new phases of matter that cannot exist in equilibrium.

Our lab is equipped with a commercial femtosecond laser system consisting of a regenerative Ti:S amplifier and optical parametric amplifier for time-resolved pump-probe spectroscopy with photon energies between 0.5 and 2.5 eV. To gain insights into the electronic and magnetic dynamics, we employ a wide range of linear and nonlinear optical responses (reflectivity, Faraday rotation/MOKE, linear/circular dichroism, SHG,…).

Contact
Dr. Christian Tzschaschel
Email: christian.tzschaschel@physik.uzh.ch
Office: Y-36-K-84