Results 31 to 40 of about 10,377 (181)

Current-driven skyrmion motion along disordered magnetic tracks

AIP Advances, 2017
The motion of skyrmions along ferromagnetic strips driven by current pulses is theoretically analyzed by means of micromagnetic simulations. Analytical expressions describing the skyrmion dynamics during and after the current pulse are obtained from an ...
Victor Raposo, Ricardo Francisco Luis Martinez, Eduardo Martinez   +2 more
doaj   +1 more source

Field-Driven Magnetic Phase Diagram and Vortex Stability in Fe Nanometric Square Prisms

Nanomaterials, 2022
In this work, we deal with the zero temperature hysteretic properties of iron (Fe) quadrangular nanoprisms and the size conditions underlying magnetic vortex states formation.
Mauricio Galvis, Fredy Mesa, Johans Restrepo   +2 more
doaj   +1 more source

Configurable pixelated skyrmions on nanoscale magnetic grids

Communications Physics, 2021
Skyrmions are particle-like magnetic structures which could form an important component of future spintronic devices but greater control over their physical characteristics must first be achieved. Here, using micromagnetic simulations, the authors report
Xichao Zhang, Jing Xia, Keiichiro Shirai, Hiroshi Fujiwara, Oleg A. Tretiakov, Motohiko Ezawa, Yan Zhou, Xiaoxi Liu   +7 more
doaj   +1 more source

Spin torque resonant vortex core expulsion for an efficient radio-frequency detection scheme [PDF]

, 2015
Spin-polarised radio-frequency currents, whose frequency is equal to that of the gyrotropic mode, will cause an excitation of the core of a magnetic vortex confined in a magnetic tunnel junction.
A Chanthbouala, A Dussaux, A Dussaux, A Khvalkovskiy, A Vogel, A. Fukushima, A. S. Jenkins, AA Tulapurkar, AS Jenkins, AV Khvalkovskiy, B Ivanov, B Pigeau, E Grimaldi, E. Grimaldi, G de Loubens, G. de Loubens, H Naganuma, H. Kubota, IM Miron, J Sampaio, J Shibata, J Zhu, JC Slonczewski, K. Yakushiji, KY Guslienko, KY Guslienko, L Liu, M Hanze, O. Klein, P. Bortolotti, R Lebrun, R. Lebrun, S Miwa, S Tsunegi, S Zhang, S. Tsunegi, S. Yuasa, SI Kiselev, V Uhlir, V. Cros, VS Pribiag   +40 more
core   +2 more sources

Unidirectional sub-100 ps magnetic vortex core reversal

, 2014
The magnetic vortex structure, an important ground state configuration in micron and sub-micron sized ferromagnetic thin film platelets, is characterized by a curling in-plane magnetization and, in the center, a minuscule region with out-of-plane ...
Back, Christian H., Dieterle, Georg, Fähnle, Manfred, Gangwar, Ajay, Kammerer, Matthias, Noske, Matthias, Schütz, Gisela, Sproll, Markus, Stoll, Hermann, Weigand, Markus, Woltersdorf, Georg   +10 more
core   +1 more source

Control of the gyration dynamics of magnetic vortices by the magnetoelastic effect [PDF]

, 2017
The influence of a strain-induced uniaxial magnetoelastic anisotropy on the magnetic vortex core dynamics in microstructured magnetostrictive Co$_{40}$Fe$_{40}$B$_{20}$ elements was investigated with time-resolved scanning transmission x-ray microscopy ...
Finizio, Simone, Gliga, Sebastian, Kirk, Eugenie, Raabe, Joerg, Suszka, Anna Kinga, Wintz, Sebastian, Wohlhueter, Phillip, Zeissler, Katharina   +7 more
core   +2 more sources

Embedded Object-Oriented Micromagnetic Frame (OOMMF) for More Flexible Micromagnetic Simulations [PDF]

Journal of Magnetics, 2016
We developed an embedded Object-Oriented Micromagnetic Frame (OOMMF) script schemes for more flexible simulations for complex and dynamic mircomagnetic behaviors. The OOMMF can be called from any kind of softwares by system calls, and we can interact with OOMMF by updating the input files for next step from the output files of the previous step of ...
Kim, Hyungsuk, You, Chun-Yeol
openaire   +2 more sources

Non-linear vortex dynamics and transient effects in ferromagnetic disks [PDF]

, 2009
We report a time resolved imaging and micromagnetic simulation study of the relaxation dynamics of a magnetic vortex in the non-linear regime. We use time-resolved photoemission electron microscopy and micromagnetic calculations to examine the emergence ...
Buchanan, K., Cheng, X. M., Divan, R., Guslienko, K. Y., Keavney, D. J.   +4 more
core   +4 more sources

Multiscale Model Approach for Magnetization Dynamics Simulations

, 2016
Simulations of magnetization dynamics in a multiscale environment enable rapid evaluation of the Landau-Lifshitz-Gilbert equation in a mesoscopic sample with nanoscopic accuracy in areas where such accuracy is required.
De Lucia, Andrea, Kläui, Mathias, Krüger, Benjamin, Tretiakov, Oleg A.   +3 more
core   +1 more source

The design and verification of MuMax3

AIP Advances, 2014
We report on the design, verification and performance of MuMax3, an open-source GPU-accelerated micromagnetic simulation program. This software solves the time- and space dependent magnetization evolution in nano- to micro scale magnets using a finite ...
Arne Vansteenkiste, Jonathan Leliaert, Mykola Dvornik, Mathias Helsen, Felipe Garcia-Sanchez, Bartel Van Waeyenberge   +5 more
doaj   +1 more source