290 citations · 727 across the 26 of their papers we have counts for
16 papers · 1 filter
Noise Estimation and Suppression in Quantitative EMCD Measurements
Hitoshi Makino, Bernd Rellinghaus, Sebastian Schneider +2
Quantitative electron magnetic circular dichroism (EMCD) in transmission electron microscopy (TEM) enables the measurement of magnetic moments with elemental and atomic site sensit…
Direct identification of local doping effects in Barium-hexaferrite by electron vortex beams
Darius Pohl, Hitoshi Makino, Arthur Ernst +4
We demonstrate atomic-scale mapping of local magnetic moments and doping effects in Ti-doped barium hexaferrite (BaFe11TiO19) using atom-sized electron vortex beams (EVBs) with con…
Characterizing the Structure of 3D DNA Origami in a Transmission Electron Microscope
Alyna Ong, Christoph Hadlich, Taekyu Jeong +5
DNA origami nanostructures provide programmable control over nanoscale geometry but remain challenging to image due to their low atomic number. Here, we systematically evaluate ima…
Spin-to-charge conversion in orthorhombic RhSi topological semimetal crystalline thin films
Surya N. Panda, Qun Yang, Darius Pohl +10
The rise of non-magnetic topological semimetals, which provide a promising platform for observing and controlling various spin-orbit effects, has led to significant advancements in…
Lateral Solid Phase Epitaxy of Yttrium Iron Garnet
Sebastian Sailler, Darius Pohl, Heike Schlörb +4
Solid phase epitaxy is a crystallization technique used to produce high quality thin films. Lateral solid phase epitaxy furthermore enables the realization of non-planar structures…
Multilayer metamaterials with mixed ferromagnetic domain core and antiferromagnetic domain wall structure
Ruslan Salikhov, Fabian Samad, Sebastian Schneider +7
Magnetic nano-objects possess great potential for more efficient data processing, storage and neuromorphic type of applications. Using high perpendicular magnetic anisotropy synthe…
Atomic Layer Deposition of Yttrium Iron Garnet Thin Films for 3D Magnetic Structures
M. Lammel, D. Scheffler, D. Pohl +11
A wide variety of new phenomena such as novel magnetization configurations have been predicted to occur in three dimensional magnetic nanostructures. However, the fabrication of su…
Antiferromagnetic Domain Wall Control via the Surface Spin Flop in Fully Tunable Synthetic Antiferromagnets with Perpendicular Magnetic Anisotropy
Benny Böhm, Lorenzo Fallarino, Darius Pohl +4
Antiferromagnetic (AF) domain walls have recently attracted revived attention, not only in the emerging field of AF spintronics, but also more specifically for offering fast domain…
Chemical Aspects of the Antiferromagnetic Topological Insulator MnBiTe
Alexander Zeugner, Frederik Nietschke, Anja U. B. Wolter +25
Crystal growth of MnBiTe has delivered the first experimental corroboration of the 3D antiferromagnetic topological insulator state. Our present results confirm that th…
Induction Mapping of the 3D-Modulated Spin Texture of Skyrmions in Thin Helimagnets
Sebastian Schneider, Daniel Wolf, Matthew J. Stolt +8
Envisaged applications of skyrmions in magnetic memory and logic devices crucially depend on the stability and mobility of these topologically non-trivial magnetic textures in thin…
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…
Intra-wire coupling in segmented Ni/Cu nanowires deposited by electrodeposition
Philip Sergelius, Ji Lee, Olivier Fruchart +18
Segmented magnetic nanowires are a promising route for the development of three dimensional data storage techniques. Such devices require a control of the coercive field and the co…
On the origin of perpendicular magnetic anisotropy in strained Fe-Co(-X) films
Ludwig Reichel, Alexander Edström, Darius Pohl +4
Very high magnetic anisotropies have been theoretically predicted for strained Fe-Co(-X) and indeed several experiments on epitaxial thin films seemed to confirm strain induced ani…
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…
From soft to hard magnetic Fe-Co-B by spontaneous strain: A combined first principle and thin film study
Ludwig Reichel, Ludwig Schultz, Darius Pohl +6
In order to convert the well-known Fe-Co-B alloy from a soft to a hard magnet, we propose tetragonal strain by interstitial boron. Density functional theory reveals that when B ato…
Increased magnetocrystalline anisotropy in epitaxial Fe-Co-C thin films with spontaneous strain
Ludwig Reichel, George Giannopoulos, Sandra Kauffmann-Weiss +8
Rare earth free alloys are in focus of permanent magnet research since the accessibility of the elements needed for nowadays conventional magnets is limited. Tetragonally strained…