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Energy equilibriation processes of electrons, magnons and phonons on the femtosecond timescale
J. Walowski, G. Müller, M. Djordjevic +4
By means of time-resolved Kerr spectroscopy experiments we relate the energy dissipation processes on the femtosecond (electron-spin relaxation time ) and nanosecond tim…
Spin dynamics triggered by sub-terahertz magnetic field pulses
Zhao Wang, Matthäus Pietz, Arno Förster +2
Current pulses of up to 20 A and as short as 3 ps are generated by a low temperature grown GaAs (lt-GaAs) photoconductive switch and guided through a coplanar waveguide, resulting…
Activation of additional energy dissipation processes in the magnetization dynamics of epitaxial chromium dioxide films
G. M. Müller, M. Münzenberg, G. -X. Miao +1
The precessional magnetization dynamics of a chromium dioxide film is examined in an all-optical pump-probe setup. The frequency dependence on the external field is used to…
Connecting the timescales in picosecond remagnetization experiments
Marija Djordjevic, Markus Münzenberg
In femtosecond demagnetization experiments, one gains access to the elementary relaxation mechanisms of a magnetically ordered spin system on a time scale of 100 fs. Following thes…