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Free keywords:
Angular distribution; Dichroism; Domain walls; Electron microscopes; Electron microscopy; Image reconstruction; Magnetic domains; Vectors; 360◦ domain wall ring; Magnetic vectors; Nanomagnetisms; Photoemission electron microscopy; Three-dimensional magnetic vector reconstruction; Vector reconstruction; Wall rings; X-ray magnetic circular dichroism; X-ray magnetic circular dichroism photo-emission electron microscopy; X-ray magnetic circular dichroism photoemission electron microscopy; article; circular dichroism; electron microscopy; experimental disease; quantitative analysis; rotation; X ray analysis; Magnetization
Abstract:
This work presents a detailed analysis of the performance of X-ray magnetic circular dichroism photoemission electron microscopy (XMCD-PEEM) as a tool for vector reconstruction of magnetization. For this, 360 domain wall ring structures which form in a synthetic antiferromagnet are chosen as the model to conduct the quantitative analysis. An assessment is made of how the quality of the results is affected depending on the number of projections that are involved in the reconstruction process, as well as their angular distribution. For this a self-consistent error metric is developed which allows an estimation of the optimum azimuthal rotation angular range and number of projections. This work thus proposes XMCD-PEEM as a powerful tool for vector imaging of complex 3D magnetic structures. © 2024 International Union of Crystallography. All rights reserved.
