23 citations · 38 across the 8 of their papers we have counts for
8 papers
Exact demagnetisation field for periodic one-dimensional array of rectangular prisms
Frederik Laust Durhuus, Andrea Roberto Insinga, Rasmus Bjørk
The magnetic field from a uniformly magnetised, rectangular prism is known exactly, which is the basis for a large number of micromagnetic simulations. Here we derive an analytical…
Including sample shape in micromagnetics with 3D periodic boundary conditions
Frederik Laust Durhuus, Andrea Roberto Insinga, Rasmus Bjørk
Periodic boundary conditions (PBCs) for computing magnetic fields in repeating magnetic structures, e.g. in micromagnetic simulations, are typically imposed using the quasi periodi…
AC Magnetometry Loop Tracer Compatible with Magnetic Calorimetry for Power Loss Analysis
Thomas Veile, Michael Harmel, Mathias Zambach +3
Magnetic nanoparticles (MNPs) have garnered significant attention for various applications in the high-kHz-to-MHz range, although their magnetic characterization at these operation…
Magnetic levitation at low rotation frequencies using an on-axis magnetic field
Joachim Marco Hermansen, Frederik Laust Durhuus, Rasmus Bjørk
The Ucar effect is a simple yet astonishing phenomenon where a permanent magnet can be levitated by placing it in the vicinity of another permanent magnet that rotates sufficiently…
Dipolar Attraction of Superparamagnetic Nanoparticles
Frederik L. Durhuus, Marco Beleggia, Cathrine Frandsen
For superparamagnetic nanoparticles (SMNPs), it is often claimed that the rapid thermal fluctuations of their magnetic moments negates the magnetic dipolar attraction, hence preven…
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…
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…
Plane wave implementation of the magnetic force theorem for magnetic exchange constants: Application to bulk Fe, Co and Ni
Frederik Durhuus, Thorbjørn Skovhus, Thomas Olsen
We present a plane wave implementation of the magnetic force theorem, which provides a first principles framework for extracting exchange constants parameterizing a classical Heise…