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2005•Applied Physics LettersOpen access

Magnetic domain walls in T-shaped permalloy microstructures

Tobias Haug, C. H. Back, Jörg Raabe, Stefan Heun, Andrea Locatelli

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Abstract

The magnetic domain wall width of T-shaped permalloy structures has been measured using a photoemission electron microscope and x-ray magnetic dichroism. The results are compared to micromagnetic simulations. The shape of the structures allows us to analyze 90° Néel walls. We find a decrease in domain wall width with decreasing contact dimensions as expected by theory and in good agreement with our micromagnetic simulations.

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What this paper is about

The magnetic domain wall width of T-shaped permalloy structures has been measured using a photoemission electron microscope and x-ray magnetic dichroism. The results are compared to micromagnetic simulations. The shape of the structures allows us to analyze 90° Néel walls. We find a decrease in domain wall width with decreasing contact dimensions as expected by theory and in good agreement with our micromagnetic simulations.

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Available abstract

The magnetic domain wall width of T-shaped permalloy structures has been measured using a photoemission electron microscope and x-ray magnetic dichroism. The results are compared to micromagnetic simulations. The shape of the structures allows us to analyze 90° Néel walls. We find a decrease in domain wall width with decreasing contact dimensions as expected by theory and in good agreement with our micromagnetic simulations.

Key concepts: Permalloy, Micromagnetics, Condensed matter physics, Magnetic domain, Magnetic force microscope, Materials science, Domain wall (magnetism), Photoemission electron microscopy

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