Switching between Magnetic Bloch and Néel Domain Walls with Anisotropy Modulations
Franke, Kévin JA, Ophus, Colin, Schmid, Andreas K, Marrows, Christopher H
Abstract
It has been shown previously that the presence of a Dzyaloshinskii-Moriya\ninteraction in perpendicularly magnetized thin films stabilizes N\\'eel type\ndomain walls. We demonstrate, using micromagnetic simulations and analytical\nmodeling, that the presence of a uniaxial in-plane magnetic anisotropy can also\nlead to the formation of N\\'eel walls in the absence of a Dzyaloshinskii-Moriya\ninteraction. It is possible to abruptly switch between Bloch and N\\'eel walls\nvia a small modulation of both the in-plane, but also the perpendicular\nmagnetic anisotropy. This opens up a route towards electric field control of\nthe domain wall type with small applied voltages through electric field\ncontrolled anisotropies.