26 citations · 62 across the 6 of their papers we have counts for
6 papers
Time-resolved X-ray diffraction study of the structural dynamics in a ferroelectric thin film induced by sub-coercive fields
C. Kwamen, M. Rössle, W. Leitenberger +2
The electric field-dependence of structural dynamics in a tetragonal ferroelectric lead zirconate titanate thin film is investigated under sub-coercive and above-coercive fields us…
Simultaneous dynamic characterization of charge and structural motion during ferroelectric switching
C. Kwamen, M. Roessle, M. Reinhardt +4
Monitoring structural changes in ferroelectric thin films during electric field-induced polarization switching is important for a full microscopic understanding of the coupled moti…
Grueneisen-Approach for the Experimental Determination of Transient Spin and Phonon Energies from Ultrafast X-ray Diffraction Data: Gadolinium
A. Koc, M. Reinhardt, A. von Reppert +6
We study gadolinium thin films as a model system for ferromagnets with negative thermal expansion. Ultrashort laser pulses heat up the electronic subsystem and we follow the transi…
Ultrafast X-ray Diffraction Thermometry Measures the Influence of Spin Excitations on the Heat Transport through nanolayers
A. Koc, M. Reinhardt, A. von Reppert +5
We investigate the heat transport through a rare earth multilayer system composed of Yttrium (Y), Dysprosium (Dy) and Niobium (Nb) by ultrafast X-ray diffraction. This is an exampl…
Direct time domain sampling of sub-THz coherent acoustic phonon spectra in SrTiO using ultrafast X-ray diffraction
Roman Shayduk, Marc Herzog, André Bojahr +8
We synthesize sub-THz longitudinal quasi-monochromatic acoustic phonons in a SrTiO single crystal using a SrRuO/SrTiO superlattice as an optical-acoustic transducer. Th…
Ultrafast x-ray diffraction studies of photoexcited coherent phonons in SrRuO thin films
Daniel Schick, Peter Gaal, André Bojahr +6
We present ultrafast x-ray diffraction experiments on thin films of metallic SrRuO (SRO) after their excitation with ultrashort intense laser pulses. Depending on the layer thi…