Results 181 to 190 of about 1,258 (222)
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Comment on ‘‘Morphology of micromagnetics’’
Physical Review B, 1991Micromagnetics theory is rigorous within its own framework. Any improvement of it must address the basic assumptions, not the technique.
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Catastrophe Model for Micromagnetics
Physical Review Letters, 1987It is shown that transition at the Curie point and uniaxial crystalline anisotropy exhibit catastrophes which have the same morphology as well-known elementary catastrophes like the cusp and the swallowtail. It is possible to understand micromagnetics as conflict between attractors of dynamical systems.
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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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Applications of micromagnetics
C R C Critical Reviews in Solid State Sciences, 1971Abstract The main idea in the original development of the theory of micromagnetics was to avoid the crude approximations and the arbitrary assumptions and constraints used in the domain theory. It was hoped that a theory could be built which would describe rigorously all the magnetization processes, from the nucleation of a wall surrounding a reversed ...
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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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