72 citations · 234 across the 16 of their papers we have counts for
16 papers
Micromagnetics of ferromagnetic/antiferromagnetic nanocomposite materials. Part I: Towards the mesoscopic approach
Sergey Erokhin, Dmitry Berkov, Andreas Michels
In the first of two articles, we present here a novel mesoscopic micromagnetic approach for simulating materials composed of ferromagnetic and antiferromagnetic phases. Starting wi…
Micromagnetics of ferromagnetic/antiferromagnetic nanocomposite materials. Part II: Mesoscopic modeling
Sergey Erokhin, Dmitry Berkov, Andreas Michels
In the second part of this publication, we present simulation results for two three-dimensional models of Heusler-type alloys obtained by the mesoscopic micromagnetic approach. In…
Remanence Increase in SrFeO/Fe Exchange-Decoupled Hard-Soft Composite Magnets Owing to Dipolar Interactions
Jesús Carlos Guzmán-Mínguez, Cecilia Granados-Miralles, Patrick Kuntschke +6
In the search for improved permanent magnets, fueled by the geostrategic and environmental issues associated with rare-earth-based magnets, magnetically hard (high anisotropy)-soft…
Generic role of the Dzyaloshinskii-Moriya interaction in nanocrystalline ferromagnets
S. Erokhin, D. Berkov, A. Michels
Motivated by recent experimental polarized neutron results, we present a numerical micromagnetic study of the interfacial (intergrain) Dzyaloshinskii-Moriya interaction (DMI) in na…
Using small-angle scattering to guide functional magnetic nanoparticle design
Dirk Honecker, Mathias Bersweiler, Sergey Erokhin +8
Magnetic nanoparticles offer unique potential for various technological, biomedical, or environmental applications thanks to the size-, shape- and material-dependent tunability of…
Mechanical orientation of fine magnetic particles in powders by an external magnetic field: simulation-based optimization
Sergey Erokhin, Dmitry Berkov
We present a numerical algorithm for predicting the optimal conditions for the effective alignment of magnetic particles in dense powders during the compactization process using an…
Resolving complex spin textures in nanoparticles by magnetic neutron scattering
Laura G. Vivas, Rocio Yanes, Dmitry Berkov +5
In the quest to image the three-dimensional magnetization structure we show that the technique of magnetic small-angle neutron scattering (SANS) is highly sensitive to the details…
Size-dependent spatial magnetization profile of manganese-zinc ferrite Mn0.2Zn0.2Fe2.6O4 nanoparticles
Mathias Bersweiler, Philipp Bender, Laura G. Vivas +7
We report the results of an unpolarized small-angle neutron scattering (SANS) study on Mn-Zn ferrite (MZFO) magnetic nanoparticles with the aim to elucidate the interplay between t…
Towards understanding of magnetization reversal in NdFeB nanocomposites: Analysis by high-throughput micromagnetic simulations
Sergey Erokhin, Dmitry Berkov, Masaaki Ito +3
We demonstrate how micromagnetic simulations can be employed in order to characterize and analyze the magnetic microstructure of nanocomposites. For the example of nanocrystalline…
Optimization of nanocomposite materials for permanent magnets by micromagnetic simulations: effect of the intergrain exchange and the hard grains shape
Sergey Erokhin, Dmitry Berkov
In this paper we perform the detailed numerical analysis of remagnetization processes in nanocomposite magnetic materials consisting of magnetically hard grains (i.e. grains made o…
Dipolar spin-misalignment correlations in inhomogeneous magnets: comparison between neutron scattering and micromagnetic approaches
Sergey Erokhin, Dmitry Berkov, Andreas Michels
In inhomogeneous bulk ferromagnets, the dominating sources of spin disorder are related to spatial variations of (i) the magnitude of the local saturation magnetization and of (ii)…
Comment on "Origin of Surface Canting within Nanoparticles"
Andreas Michels, Dirk Honecker, Sergey Erokhin +1
We comment on the Letter "Origin of surface canting within nanoparticles" by K.L. Krycka et al. [Phys. Rev. Lett. , 147203 (2014)].
Analysis of magnetic neutron-scattering data of two-phase ferromagnets
Dirk Honecker, Charles D. Dewhurst, Kiyonori Suzuki +2
We have analyzed magnetic-field-dependent small-angle neutron scattering (SANS) data of soft magnetic two-phase nanocomposite ferromagnets in terms of a recent micromagnetic theory…
Robust synchronization of an arbitrary number of spin-torque driven vortex nanooscillators
Sergey Erokhin, Dmitry Berkov
Non-linear magnetization dynamics in ferromagnetic nanoelements excited by the spin-polarized dc-current is one of the most intensively studied phenomena in solid state magnetism.…
Micromagnetic simulation of magnetic small-angle neutron scattering from two-phase nanocomposites
Andreas Michels, Sergey Erokhin, Dmitry Berkov +1
The recent development of a micromagnetic simulation methodology - suitable for multiphase magnetic nanocomposites - permits the computation of the magnetic microstructure and of t…
Magnetic nanocomposites: new methodology for micromagnetic modeling and SANS experiments
Sergey Erokhin, Dmitry Berkov, Nataliya Gorn +1
A new methodology for micromagnetic simulations of magnetic nanocomposites is presented. The methodology is especially suitable for simulations of two-phase composites consisting o…