학술논문

Determination of optimal experimental conditions for accurate 3D reconstruction of the magnetization vector via XMCD-PEEM
Document Type
article
Source
Journal of Synchrotron Radiation, Vol 31, Iss 2, Pp 336-342 (2024)
Subject
three-dimensional magnetic vector reconstruction
x-ray magnetic circular dichroism photo-emission electron microscopy
xmcd-peem
nanomagnetism
360° domain wall rings
Nuclear and particle physics. Atomic energy. Radioactivity
QC770-798
Crystallography
QD901-999
Language
English
ISSN
1600-5775
16005775
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.