Simon Rauls

Decoupling Diffusion- and Field-Driven Ion Transport in Graphene Oxide/Tungsten Disulfide Heterolaminar Composites

Yossarian Liebsch, Ann-Sophie Meyer, André Maas, Simon Rauls et autres

Laminar graphene oxide (GO) films provide a model platform for studying ion transport in nanometer-scale two-dimensional (2D) nanochannels. We investigate how incorporation of tungsten disulfide (WS2) nanoflakes redistributes ionic transport in GO laminates between diffusion- and field-driven regimes. GO/WS2 composites show a …

de, au (code pays fourni par la source)

Non-equilibrium phase regime and magnetic properties of co-evaporated Fe-V thin-films

Simon Rauls, Benedikt Eggert, Shadab Md. Anwar, Tobias Lojewski et autres

At equiatomic composition, FeV alloys form metastable phases such as the B2 phase or a short-range ordered phase in favor of the equilibrium σ phase. In this regime, structural, magnetic, and vibrational properties are strongly influenced by atomic disorder. For thermally co-evaporated …

de, fr (code pays fourni par la source)

Non-Equilibrium Phase Diagram and Magnetic Properties of Co-Evaporated Fe-V Thin-Films

Simon Rauls, Benedikt Eggert, Shadab Md. Anwar, Tobias Lojewski et autres

fr, de (code pays fourni par la source)

Evolution of defects and local environment during the magnetostructural phase transformation in F e 60 V 40 thin films

Simon Rauls, Shadab Md. Anwar, Maciej Oskar Liedke, Maik Butterling et autres

Thin films of short-range-ordered $\mathrm{F}{\mathrm{e}}_{60}{\mathrm{V}}_{40}$ alloys undergo a transition to bcc structure caused by the penetration of energetic $\mathrm{N}{\mathrm{e}}^{+}$ ions. The magnetic ordering correlates to the lattice order, where the short-range-ordered alloy is paramagnetic and the bcc structure becomes ferromagnetic. We show …

de (code pays fourni par la source)

Impact of magnetic and antisite disorder on the vibrational densities of states in Ni2MnSn Heusler alloys

Olga N. Miroshkina, Benedikt Eggert, Johanna Lill, Benedikt Beckmann et autres

We have performed a combined experimental and theoretical investigation of the vibrational properties of ${\mathrm{Ni}}_{2}\mathrm{Mn}\mathrm{Sn}$ Heusler alloys. Sn-partial vibrational density of states (VDOS) of $^{119}\mathrm{Sn}$ was measured by nuclear resonant inelastic x-ray scattering at temperatures of 15 and 300 K, while magnetism …

de, us, cz (code pays fourni par la source)

Depth-Adjustable Magnetostructural Phase Transition in Fe60V40 Thin Films

Shadab Md. Anwar, Hamza Cansever, Benny Boehm, R. A. Gallardo et autres

Phase transitions occurring within spatially confined regions can be useful for generating nanoscale material property modulations. Here we describe a magneto-structural phase transition in a binary alloy, where a structural transition from short-range order (SRO) to body centered cubic (bcc) results in …

de, cl (code pays fourni par la source)

Towards field-effect controlled graphene-enhanced Raman spectroscopy of cobalt octaethylporphyrin molecules

Stephan Sleziona, Simon Rauls, Tobias Heckhoff, Leonard Christen et autres

During the last decade graphene-enhanced Raman spectroscopy has proven to be a powerful tool to detect and analyze minute amounts of molecules adsorbed on graphene. By using a graphene-based field-effect device the unique opportunity arises to gain a deeper insight into the …

de (code pays fourni par la source)