138 citations · 1.1k across the 25 of their papers we have counts for
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EMCD with an electron vortex filter: Limitations and possibilities
Thomas Schachinger, Stefan Löffler, Andreas Steiger-Thirsfeld +5
We discuss the feasibility of detecting spin polarized electronic transitions with a vortex filter. This approach does not rely on the principal condition of the standard energy lo…
Mapping atomic orbitals with the transmission electron microscope: Images of defective graphene predicted from first-principles theory
Lorenzo Pardini, Stefan Löffler, Giulio Biddau +4
Transmission electron microscopy has been a promising candidate for mapping atomic orbitals for a long time. Here, we explore its capabilities by a first principles approach. For t…
Real-space mapping of electronic orbitals
Stefan Löffler, Matthieu Bugnet, Nicolas Gauquelin +5
Electronic states are responsible for most material properties, including chemical bonds, electrical and thermal conductivity, as well as optical and magnetic properties. Experimen…
Magnetic properties of single nanomagnets: EMCD on FePt nanoparticles
Sebastian Schneider, Darius Pohl, Stefan Löffler +5
Energy-loss magnetic chiral dichroism (EMCD) allows for the quantification of magnetic properties of materials at the nanometer scale. It is shown that with the support of simulati…
A pure state decomposition approach of the mixed dynamic form factor for mapping atomic orbitals
Stefan Löffler, Viktoria Motsch, Peter Schattschneider
We demonstrate how the mixed dynamic form factor (MDFF) can be interpreted as a quadratic form. This makes it possible to use matrix diagonalization methods to reduce the number of…
Transition probability functions for inelastic electron--electron scattering
Stefan Löffler, Peter Schattschneider
In this work, the transition matrix elements for inelastic electron--electron scattering are investigated. The angular part is given by spherical harmonics. For the weighted radial…