21 citations · 41 across the 5 of their papers we have counts for
5 papers
Conservation laws for interacting magnetic nanoparticles at finite temperature
Frederik L. Durhuus, Marco Beleggia, Cathrine Frandsen
We establish a general Langevin Dynamics model of interacting, single-domain magnetic nanoparticles in liquid suspension at finite temperature. The model couples the LLG equation f…
Design of superparamagnetic nanoparticle-materials for high-frequency inductor cores
Mathias Zambach, Ziwei Ouyang, Matti Knaapila +2
The progress in the semiconductor industry has resulted in great demand for high-frequency magnetic materials applicable in microfabricated inductor cores. Nanocomposite materials,…
Magnetic levitation by rotation
Joachim Marco Hermansen, Frederik Laust Durhuus, Cathrine Frandsen +3
A permanent magnet can be levitated simply by placing it in the vicinity of another permanent magnet that rotates in the order of 200 Hz. This surprising effect can be easily repro…
Generation of electron vortex beams with over 1000 orbital angular momentum quanta using a tuneable electrostatic spiral phase plate
A. H. Tavabi, P. Rosi, A. Roncaglia +9
We report the use of an electrostatic MEMS-based device to produce high quality electron vortex beams with more than 1000 quanta of orbital angular momentum (OAM). Diffraction and…
Tunable Ampere phase plate for low dose imaging of biomolecular complexes
Amir H. Tavabi, Marco Beleggia, Vadim Migunov +5
A novel device that can be used as a tunable support-free phase plate for transmission electron microscopy of weakly scattering specimens is described. The device relies on the gen…