Results 21 to 30 of about 2,853,460 (219)

Micromagnetic studies of three-dimensional pyramidal shell-structures [PDF]

open access: yes, 2010
In this article we present a systematic, numerical analysis of the magnetic properties of pyramidal-shaped core-shell structures in a size range below 400nm.These are three dimensional structures consisting of a ferromagnetic shell which is grown on top ...
A Knittel   +17 more
core   +2 more sources

Full Micromagnetic Numerical Simulations of Thermal Fluctuations [PDF]

open access: yesIEEE Transactions on Magnetics, 2009
Thermal fluctuations for fine ferromagnetic particles are studied with the full micromagnetic analysis based on numerical integration of the spatially discretized Langevin-Landau-Lifshitz equation. These results can be used as a basis for the formulation of a standard problem to test the implementation of thermal fluctuations in numerical micromagnetic
RAGUSA, CARLO STEFANO   +6 more
openaire   +7 more sources

Micromagnetic simulations of absoption spectra [PDF]

open access: yesJournal of Magnetism and Magnetic Materials, 2006
Further development of a previously introduced method for numerically simulating magnetic spin waves is presented. Together with significant improvements in speed, the method now allows one to calculate the energy absorbed by the various modes excited by a position- and time-dependent H1 field in a ferromagnetic body of arbitrary shape in the presence ...
Rivkin, K., Ketterson, J. B.
openaire   +2 more sources

Correction to “Micromagnetic models of pseudo-single domain grains of magnetite near the Verwey Transition” [PDF]

open access: yes, 1999
Domain structures of small pseudo-single domain (PSD) magnetite near the Verwey transition (Tυ) at ≈120 K were modeled using an unconstrained three-dimensional micromagnetic algorithm.
A. R. Muxworthy   +3 more
core   +1 more source

Micromagnetic simulations of magnetoelectric materials [PDF]

open access: yesJournal of Applied Physics, 2011
Some magnetic materials show a magnetoelectric coupling between inhomogeneous magnetization patterns and electric polarization that is sufficiently strong to allow external control of magnetization structure by electric fields. Numerical simulations of “magnetoelectric” materials of this type require an extension of the standard micromagnetic model ...
Fischbacher, Thomas   +2 more
openaire   +2 more sources

Effect of magnetostatic interactions on the hysteresis parameters of single-domain and psuedo-single domain grains [PDF]

open access: yes, 2003
From experiments it is known that magnetostatic interactions between grains strongly affect the magnetic behavior of samples. However, because of the difficulty in predicting the nonlinear behavior, the effect of interactions has been largely ignored ...
Davinder Virdee   +7 more
core   +1 more source

Ubermag: towards more effective micromagnetic workflows [PDF]

open access: yes, 2021
Computational micromagnetics has become an essential tool in academia and industry to support fundamental research and the design and development of devices.
Lang, Martin   +5 more
core   +1 more source

High-temperature magnetic stability of small magnetite particles [PDF]

open access: yes, 2003
The stability of magnetic domain structures of small grains of magnetite were examined between room temperature and the Curie temperature using a high-resolution three-dimensional micromagnetic algorithm.
Williams, W.   +5 more
core   +1 more source

Electrical-field and spin-transfer torque effects in CoFeB/MgO-based perpendicular magnetic tunnel junction

open access: yesAIP Advances, 2016
The electric-field (E) dependence of the magnetoresistance (RH) loops for top-pinned perpendicular CoFeB/MgO-based magnetic tunnel junctions (MTJs) in the presence of a spin-transfer torque (STT)-current was measured.
Chikako Yoshida   +7 more
doaj   +1 more source

Micromagnetic Simulation of Domain Structure Transition in Ferromagnetic Nanospheres under Zero External Field

open access: yesInternational Journal of Technology, 2021
In this work, we investigated the domain structure transition in ferromagnetic nanospheres at the ground-state conditions under zero external magnetic field by micromagnetic simulation. Four basic ferromagnetic materials, nickel (Ni), permalloy (Py),
Dede Djuhana   +3 more
doaj   +1 more source

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