11 citations · 24 across the 12 of their papers we have counts for
14 papers
Machine-learned topological transport of magnetic colloids
Sebastian Wohlrab, Aneena Rinu Perayil, Piotr Kuświk +6
By modulating the orientation of a uniform magnetic field it is possible to transport magnetic microparticles above magnetic patterns. In periodic patterns, driving control loops t…
Growth and Kerr magnetometry of Mn2Au on a gold-capped Nb(001) substrate
Jendrik Gördes, Christian Janzen, Arne J. Vereijken +4
We report on the epitaxial growth of antiferromagnetic Mn2Au on a Nb(001) substrate capped with a pseudomorphic layer of gold. We observe a layer-by-layer growth by means of medium…
Tracking the Brownian motion of DNA-functionalized magnetic nanoparticles for conformation analysis beyond the optical resolution limit
Christian Janzen, Fabian Schmid-Michels, Yahya Shubbak +6
Brownian motion provides access to hydrodynamic properties of nanoscale objects independent of their optical resolvability. Here, we present a diffusion-based approach to infer eff…
Magnetophoretic long jump of magnetic microparticles in an engineered magnetic stray field landscape for highly localized and large throughput on-chip fractionation
Rico Huhnstock, Lukas Paetzold, Piotr Kuswik +1
A common issue faced by magnetic particle-based Lab-on-a-chip systems, e.g, for medical diagnostics, is the intrinsic fabrication-related polydispersity in particle sizes and magne…
Topological sorting of magnetic colloidal bipeds
Aneena Rinu Perayil, Piotr Kuświk, Maciej Urbaniak +5
Topologically nontrivial adiabatic loops of the orientation of a homogeneous external magnetic field drive the walking of paramagnetic colloidal bipeds above a deformed quasi-perio…
Modeling liquid-mediated interactions for close-to-substrate magnetic microparticle transport in dynamic magnetic field landscapes
Markus Gusenbauer, Rico Huhnstock, Alexander Kovacs +3
Understanding the on-chip motion of magnetic particles in a microfluidic environment is key to realizing magnetic particle-based Lab-on-a-chip systems for medical diagnostics. In t…
Excited state assignment and state-resolved photoelectron circular dichroism in chalcogen-substituted fenchones
Sudheendran Vasudevan, Steffen M. Giesen, Simon T. Ranecky +21
Excited electronic states of fenchone, thiofenchone, and selenofenchone are characterized and assigned with different gas-phase spectroscopic methods and \textit{ab initio} quantum…
Wavelength-Dependent Photodissociation of Iodomethylbutane
Valerija Music, Felix Allum, Ludger Inhester +37
Ultrashort XUV pulses of the Free-Electron-LASer in Hamburg (FLASH) were used to investigate laser-induced fragmentation patterns of the prototypical chiral molecule 1-iodo-2-methy…
Magnetic colloidal single particles and dumbbells on a tilted washboard moire pattern in a precessing external field
Farzaneh Farrokhzad, Nex C. X. Stuhlmüller, Piotr Kuświk +6
We measure the dynamical behavior of colloidal singlets and dumbbells on an inclined magnetic moiré pattern, subject to a precessing external homogeneous magnetic field. At low ext…
Interplay of protection and damage through intermolecular processes in the decay of electronic core holes in microsolvated organic molecules
Dana Bloß, Nikolai V. Kryzhevoi, Jonas Maurmann +11
Soft X-ray irradiation of molecules causes electronic core-level vacancies through photoelectronemission. In light elements, such as C, N, or O, which are abundant in the biosphere…
Site- and Energy-Selective Low-Energy Electron Emission by X-Rays in Aqueous Phase
Dana Bloß, Rémi Dupuy, Florian Trinter +16
Low-energy-electron emission from resonant Auger final states via intermolecular Coulombic decay (RA-ICD) has been previously described as a promising scenario for controlling radi…
Attosecond soft X-ray pulses generated by chirp-dispersed manipulation in an XFEL reveal nonlinear core-electron dynamics in neon
Lars Funke, Markus Ilchen, Svitozar Serkez +59
Free-electron lasers have demonstrated their capability of generating intense attosecond X-ray pulses, which are the key to studying electron dynamics at their natural time scale a…
Topologically controlled synthesis of active colloidal bipeds
Jonas Elschner, Farzaneh Farrokhzad, Piotr Kuświk +6
Topological growth control allows to produce a narrow distribution of outgrown colloidal rods with defined and adjustable length. We use an external magnetic field to assemble para…
Simultaneous and independent topological control of identical microparticles in non-periodic energy landscapes
N. C. X. Stuhlmüller, F. Farrokhzad, P. Kuświk +6
Topological protection ensures stability of information and particle transport against perturbations. We explore experimentally and computationally the topologically protected tran…