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arXiv · 2209.02627

Real-time probing of magnetic domain wall dynamic

Tao Xing·Nicolas Vernier·Xueying Zhang·Alessio. RASKINE·Weisheng Zhao
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Abstract

We present a study of a very seldom used way of measuring magnetic domain wall velocity, which makes it possible to have a real-time probing of the domain movement in the area illuminated by a laser spot. We have compared this method to the most usual one: although the velocities are similar, the different method do not give the same results if the laser spot is too small. It can be explained by a dendritic shape of the domain wall. By changing the size spot, we propose a basic model which describes quite well the transit time in the laser spot as a function of its size and makes it possible to extract the velocity and the depth of the dendrites.

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Tao Xing, Nicolas Vernier, Xueying Zhang, Alessio. RASKINE, Weisheng Zhao. 2022-09-06. Real-time probing of magnetic domain wall dynamic. https://arxiv.org/abs/2209.02627

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