Results 51 to 60 of about 10,377 (181)

Towards Miniaturization of Magnetic Gears: Torque Performance Assessment

open access: yesMicromachines, 2017
Magnetomechanical components can be a good solution in order to reduce, or even completely avoid, friction phenomena in micro-electro-mechanical systems (MEMS) since they can transmit forces through magnetic fields without contacts. In this communication,
Efren Diez-Jimenez   +2 more
doaj   +1 more source

Micro-magnetic simulations of correlated switching in touching circular nano-magnetic elements

open access: yesAIP Advances, 2020
Past studies have demonstrated that logic states can be represented using the rotation of the magnetization at flux-closed remanence in individual ferromagnetic disks.
Tejumade Durowade, Vitali Metlushko
doaj   +1 more source

Mode- and size-dependent Landau-Lifshitz damping in magnetic nanostructures: Evidence for non-local damping

open access: yes, 2013
We demonstrate a strong dependence of the effective damping on the nanomagnet size and the particular spin-wave mode that can be explained by the theory of intralayer transverse-spin-pumping. The effective Landau-Lifshitz damping is measured optically in
Boone, Carl T.   +3 more
core   +1 more source

Simulated Guidance in Interpreting Nano-Patterned Co70Fe30 Film Imaging with Differential Phase Contrast

open access: yesNanomaterials
Our paper introduces a simulation-based framework designed to interpret differential phase contrast (DPC) magnetic imaging within the transmission electron microscope (TEM).
Björn Büker   +5 more
doaj   +1 more source

Magnetization dynamics of magnetic domain wall imprinted magnetic films

open access: yesNew Journal of Physics, 2014
The influence of micromagnetic objects on the dynamic magnetic excitation in magnetic thin films is studied by imprinting periodic domain wall patterns through selective ion irradiation in exchange biased Ni _81 Fe _19 /IrMn structures.
Christine Hamann   +5 more
doaj   +1 more source

Size and profile of skyrmions in skyrmion crystals

open access: yesCommunications Physics, 2021
Understanding the parameters which govern the size of a skyrmion are important to gain greater control over their stability and dynamics but the underlying mechanisms differ from individual skyrmions to skyrmion crystals. To this end, using micromagnetic
Haitao Wu   +3 more
doaj   +1 more source

Phase locking dynamics of dipolarly coupled vortex-based spin transfer oscillators

open access: yes, 2012
Phase locking dynamics of dipolarly coupled vortices excited by spin-polarized current in two identical nanopillars is studied as a function of the interpillar distance L.
A. D. Belanovsky   +9 more
core   +1 more source

Asymmetric hysteresis of N\'eel caps in flux-closure magnetic dots [PDF]

open access: yes, 2009
We investigated with XMCD-PEEM magnetic imaging the magnetization reversal processes of N\'eel caps inside Bloch walls in self-assembled, micron-sized Fe(110) dots with flux-closure magnetic state.
Bayle-Guillemaud, Pascale   +10 more
core   +6 more sources

Micromagnetic simulations of submicron cobalt dots [PDF]

open access: yesJournal of Applied Physics, 2000
Numerical simulations of submicron Co extruded elliptical dots were performed to illustrate the relative importance of different physical parameters on the switching behavior in the easy direction. Shape, size, magnetic moment magnitude, and the magnitude and distribution of the crystalline anisotropicity were varied.
Parker, G. J., Cerjan, C.
openaire   +1 more source

Multiscale modeling of magnetic materials: Temperature dependence of the exchange stiffness [PDF]

open access: yes, 2010
For finite-temperature micromagnetic simulations the knowledge of the temperature dependence of the exchange stiffness plays a central role. We use two approaches for the calculation of the thermodynamic exchange parameter from spin models: (i) based on ...
Atxitia, U.   +7 more
core   +1 more source

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