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Micromagnetic simulation of exchange coupled ferri-/ferromagnetic heterostructures.

ABSTRACT: Exchange coupled ferri-/ferromagnetic heterostructures are a possible material composition for future magnetic storage and sensor applications. In order to understand the driving mechanisms in the demagnetization process, we perform micromagnetic simulations by employing the Landau-Lifshitz-Gilbert equation. The magnetization reversal is dominated by pinning events within the amorphous ferrimagnetic layer and at the interface between the ferrimagnetic and the ferromagnetic layer. The shape of the computed magnetization reversal loop corresponds well with experimental data, if a spatial variation of the exchange coupling across the ferri-/ferromagnetic interface is assumed.

SUBMITTER: Oezelt H

PROVIDER: S-EPMC4394145 | biostudies-literature | 2015 May

REPOSITORIES: biostudies-literature

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Micromagnetic simulation of exchange coupled ferri-/ferromagnetic heterostructures.

Oezelt Harald H Kovacs Alexander A Reichel Franz F Fischbacher Johann J Bance Simon S Gusenbauer Markus M Schubert Christian C Albrecht Manfred M Schrefl Thomas T

Journal of magnetism and magnetic materials 20150501

Exchange coupled ferri-/ferromagnetic heterostructures are a possible material composition for future magnetic storage and sensor applications. In order to understand the driving mechanisms in the demagnetization process, we perform micromagnetic simulations by employing the Landau-Lifshitz-Gilbert equation. The magnetization reversal is dominated by pinning events within the amorphous ferrimagnetic layer and at the interface between the ferrimagnetic and the ferromagnetic layer. The shape of th ...[more]

PMID: 25937693

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