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(a) Sketch of the region of interest showing the various structures sizes and shapes. (b)–(e) Sequence of successive XMCD images from the same region. The arrows indicate the order in which the images were recorded, while a single linearly polarized laser pulse was applied to the sample in between each of them. The circle indicates the case for which the switching is not complete.
(a) Atomic force microscopy image of the sample showing the 2 μm square and disc and the 500, 400, 300, and 100 nm squares. In-plane and out-of-plane magnetization images of the sample in its initial state (b) and (c) and after applying a single femtosecond laser pulse resulting in a slight change in the in-plane magnetization (d) while the out-of-plane magnetization reverses its direction, e.g., from down (red) to up (blue) magnetization direction (e).
(a) XAS spectrum obtained from the central and edge regions of a 400 nm wide disc, with the inset indicating the regions of interest. The arrow indicates the position of the Fe3+ oxide peak. (b) Oxidation image obtained by computing the pixel-by-pixel difference between the Fe oxide and metal peaks images. (c) AFM line profiles for the different structures.
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