Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8155936 | Journal of Magnetism and Magnetic Materials | 2015 | 6 Pages |
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.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Harald Oezelt, Alexander Kovacs, Franz Reichel, Johann Fischbacher, Simon Bance, Markus Gusenbauer, Christian Schubert, Manfred Albrecht, Thomas Schrefl,