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arXiv · 2104.12400

Switching between Magnetic Bloch and Néel Domain Walls with Anisotropy Modulations

Kévin J. A. Franke·Colin Ophus·Andreas K. Schmid·Christopher H. Marrows
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Abstract

It has been shown previously that the presence of a Dzyaloshinskii-Moriya interaction in perpendicularly magnetized thin films stabilizes Néel type domain walls. We demonstrate, using micromagnetic simulations and analytical modeling, that the presence of a uniaxial in-plane magnetic anisotropy can also lead to the formation of Néel walls in the absence of a Dzyaloshinskii-Moriya interaction. It is possible to abruptly switch between Bloch and Néel walls via a small modulation of both the in-plane, but also the perpendicular magnetic anisotropy. This opens up a route towards electric field control of the domain wall type with small applied voltages through electric field controlled anisotropies.

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BibTeXRIS

Kévin J. A. Franke, Colin Ophus, Andreas K. Schmid, Christopher H. Marrows. 2021-09-09. Switching between Magnetic Bloch and Néel Domain Walls with Anisotropy Modulations. https://doi.org/10.1103/physrevlett.127.127203

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