575 citations · 850 across the 33 of their papers we have counts for
12 papers · 1 filter
Reflective Metastructure Q-plate for Ultrashort Laser Pulses
Christopher G. O. Weiß, Bert Lägel, Benjamin Stadtmüller +2
The orbital angular momentum of light is an intriguing property for developing light driven applications. It emerged as an independent degree of freedom by which to manipulate ligh…
Transition from Optically Excited to Intrinsic Spin Polarization in WSe
Sebastian Hedwig, Gregor Zinke, Jürgen Braun +6
Layered 2D van der Waals materials, such as transition metal dichalcogenides, are promising for nanoscale spintronic and optoelectronic applications. Harnessing their full potentia…
Magnetic nutation: transient separation of magnetization from its angular momentum
Anulekha De, Julius Schlegel, Akira Lentfert +6
For nearly 90 years, precession and relaxation processes have been thought to dominate magnetization dynamics. Only recently has it been considered that, on short time scales, an i…
Coherent and incoherent magnons induced by strong ultrafast demagnetization in thin permalloy films
Anulekha De, Akira Lentfert, Laura Scheuer +4
Understanding spin dynamics on femto- and picosecond timescales offers new opportunities for faster and more efficient spintronic devices. Here, we experimentally investigate the c…
Revealing Hidden Spin Polarization in Centrosymmetric van der Waals Materials on Ultrafast Timescales
Benito Arnoldi, Sara L. Zachritz, Sebastian Hedwig +3
One of the key challenges for spintronic and novel quantum technologies is to achieve active control of the spin angular momentum of electrons in nanoscale materials on ultrafast,…
Multiorbital exciton formation in an organic semiconductor
Wiebke Bennecke, Andreas Windischbacher, David Schmitt +13
Harnessing the optoelectronic response of organic semiconductors requires a thorough understanding of the fundamental light-matter interaction that is dominated by the excitation o…
Effect of iron thicknesses on spin transport in a Fe/Au bilayer system
J. Briones, M. Weber, B. Stadtmüller +2
This paper is concerned with a theoretical analysis of the behavior of optically excited spin currents in bilayer and multilayer systems of ferromagnetic and normal metals. As the…
Control of transport phenomena in magnetic heterostructures by wavelength modulation
Christopher Seibel, Marius Weber, Martin Stiehl +5
We demonstrate the tuneablity of the ultrafast energy flow in magnetic/non-magnetic bilayer structures by changing the wavelength of the optical excitation. This is achieved by an…
Energy and Momentum Distribution of Surface Plasmon-induced Hot Carriers Isolated via Spatiotemporal Separation
Michael Hartelt, Pavel N. Terekhin, Tobias Eul +6
Understanding the differences between photon-induced and plasmon-induced hot electrons is essential for the construction of devices for plasmonic energy conversion. The mechanism o…
Adsorption-induced modification of the hot electron lifetime in a Pb/Ag111 quantum well system
Florian Haag, Tobias Eul, Lisa Grad +5
The interfacial band structures of multilayer systems play a crucial role for the ultrafast charge and spin carrier dynamics at interfaces. Here, we study the energy- and momentum-…
Modification of the charge and magnetic order of a low dimensional ferromagnet by molecule-surface bonding
Johannes Seidel, Eva S. Walther, Sina Mousavion +9
The ability to design and control the spin and charge order of low dimensional materials on the molecular scale offers an intriguing pathway towards the miniaturization of spintron…
Ultrafast charge carrier separation in Potassium-intercalated endohedral metallofullerene ScN@C thin films
Sebastian Emmerich, Sebastian Hedwig, Mirko Cinchetti +2
Molecular materials have emerged as highly tunable materials for photovoltaic and light-harvesting applications. The most severe challenge of this class of materials is the trappin…