论文标题
磁性域壁动态的实时探测
Real-time probing of magnetic domain wall dynamic
论文作者
论文摘要
我们介绍了一项很少使用的方法来测量磁性域壁速度的方法，这使得可以实时探测被激光点照亮的区域中的域运动。我们将此方法与最常见的方法进行了比较：尽管速度相似，但如果激光点太小，则不同的方法不会给出相同的结果。它可以用域壁的树突形状来解释。通过更改尺寸斑点，我们提出了一个基本模型，该模型很好地描述了激光点中的运输时间是其大小的函数，并可以提取树突的速度和深度。
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.
