Results 141 to 150 of about 361 (179)
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Mathematical Models and Methods in Applied Sciences, 2005
We study a thin-shell limit of micromagnetic energy for soft small ferromagnets. The relations between thickness of the magnet t, diameter l and magnetic exchange length w are t/l → 0 and tl/w2 ≲ 1. We prove a Γ-convergence of the original 3D problem to a nonlocal 2D problem.
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We study a thin-shell limit of micromagnetic energy for soft small ferromagnets. The relations between thickness of the magnet t, diameter l and magnetic exchange length w are t/l → 0 and tl/w2 ≲ 1. We prove a Γ-convergence of the original 3D problem to a nonlocal 2D problem.
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2021
AbstractIn this chapter we report the progress made in using full-scale micromagnetic simulations for the understanding of the fundamentals of magnetic SANS. These studies take into account the nonlinearity of Brown's static equations of micromagnetics.
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AbstractIn this chapter we report the progress made in using full-scale micromagnetic simulations for the understanding of the fundamentals of magnetic SANS. These studies take into account the nonlinearity of Brown's static equations of micromagnetics.
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2001
Abstract It can be concluded from the last chapter that there is no way to neglect any one of the three energy terms, exchange, anisotropy, and magnetostatic, and all three must be taken into account in any realistic theory of the magnetization processes.
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Abstract It can be concluded from the last chapter that there is no way to neglect any one of the three energy terms, exchange, anisotropy, and magnetostatic, and all three must be taken into account in any realistic theory of the magnetization processes.
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2001
Abstract In this chapter and the next one, various topics in micromagnetics, outside the nucleation problem, will be described. The subdivision into analytic and numerical studies in the two chapters is rather artificial and quite arbitrary.
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Abstract In this chapter and the next one, various topics in micromagnetics, outside the nucleation problem, will be described. The subdivision into analytic and numerical studies in the two chapters is rather artificial and quite arbitrary.
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2001
Abstract In all the numerical computations in micromagnetics, nearly all the computer time is spent on computing the magnetostatic energy term for the different magnetization configurations which are being tried. It must be emphasized that this feature is independent of the computational method, and is a result of the inevitable fact ...
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Abstract In all the numerical computations in micromagnetics, nearly all the computer time is spent on computing the magnetostatic energy term for the different magnetization configurations which are being tried. It must be emphasized that this feature is independent of the computational method, and is a result of the inevitable fact ...
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Rectifiability of entropy defect measures in a micromagnetics model
Advances in Calculus of Variations, 2023Elio Marconi
exaly