68 citations · 166 across the 12 of their papers we have counts for
13 papers
Linear dichroic soft X-ray microscopy of ferroelectric stripe domains in epitaxial KNaNbO
M. Schneider, T. A. Butcher, S. Wagner +20
Functional properties of ferroelectric thin films are governed by domains that can be engineered by epitaxial strain. Soft x-ray microscopy can image domain structures with element…
Picosecond localization dynamics following ultrafast nanoscale magnetic switching
Daniel Metternich, Michael Schneider, Giuseppe Mercurio +28
Ultrashort laser pulses provide the fastest known way to switch magnetic order. Such excitation commonly creates nanometer-scale domains, even after homogeneous illumination when t…
Local nanoscale probing of electron spins using NV centers in diamond
Sergei Trofimov, Christos Thessalonikios, Victor Deinhart +5
Substitutional nitrogen atoms in a diamond crystal (P1 centers) are, on one hand, a resource for creation of nitrogen-vacancy (NV) centers, that have been widely employed as nanosc…
Soft-X-ray momentum microscopy of nonlinear magnon interactions below 100-nm wavelength
Steffen Wittrock, Christopher Klose, Salvatore Perna +10
Magnons are quantised collective excitations of long-range ordered spins. At nanometre wavelengths, exchange interactions increasingly govern their dynamics, giving rise to a large…
Double tips for in-plane polarized near-field microscopy and spectroscopy
Patryk Kusch, Jose Pareja Arcos, Aleksei Tsarapkin +4
Near-field optical microscopy and spectroscopy provide high-resolution imaging below the diffraction limit, crucial in physics, chemistry, and biology for studying molecules, nanop…
Double helical plasmonic antennas
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz +5
Plasmonic double helical antennas are a means to funnel circularly polarized light down to the nanoscale. Here, an existing design tool for single helices is extended to the case o…
Emergent Chaos-Like Dynamics of Spin-Orbit Torque-Driven Magnetic Transitions
Lisa-Marie Kern, Kai Litzius, Victor Deinhart +12
Spin-orbit torques (SOTs) are widely used to control magnetization in nanoscale electric systems and are typically assumed to drive skyrmion nucleation and motion in a deterministi…
Individual Nanostructures in an Epsilon-Near-Zero Material Probed with 3D-Sculpted Light
Brian Kantor, Lisa Ackermann, Victor Deinhart +3
Epsilon-near-zero (ENZ) materials, i.e., materials with a vanishing real part of the permittivity, have become an increasingly desirable platform for exploring linear and nonlinear…
Towards tunable graphene phononic crystals
Yuefeng Yu, Jan N. Kirchhof, Aleksei Tsarapkin +5
Phononic crystals (PnCs) are artificially patterned media exhibiting bands of allowed and forbidden zones for phonons. Many emerging applications of PnCs from solid-state simulator…
Tailoring Optical Excitation to Control Magnetic Skyrmion Nucleation
Lisa-Marie Kern, Bastian Pfau, Michael Schneider +12
In ferromagnetic multilayers, a single laser pulse with a fluence above an optical nucleation threshold can create magnetic skyrmions, which are randomly distributed over the area…
Deterministic Generation and Guided Motion of Magnetic Skyrmions by Focused He-Ion Irradiation
L. -M. Kern, B. Pfau, V. Deinhart +17
Magnetic skyrmions are quasiparticles with non-trivial topology, envisioned to play a key role in next-generation data technology while simultaneously attracting fundamental resear…
Tunable graphene phononic crystal
Jan N. Kirchhof, Kristina Weinel, Sebastian Heeg +4
In the field of phononics, periodic patterning controls vibrations and thereby the flow of heat and sound in matter. Bandgaps arising in such phononic crystals realize low-dissipat…
Selective-area van der Waals epitaxy of h-BN/graphene heterostructures via He irradiation-induced defect-engineering in 2D substrates
Martin Heilmann, Victor Deinhart, Abbes Tahraoui +2
The combination of two-dimensional (2D) materials into heterostructures enabled the formation of atomically thin devices with designed properties. To achieve a high density, bottom…