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Updated: Feb 8, 2026

A 3D Cartographic Description of the Cell by Cryo Soft X-ray Tomography
Published on: March 15, 2021
3D reconstruction of magnetization from dichroic soft X-ray transmission tomography
Aurelio Hierro-Rodriguez1, Doga Gürsoy2, Charudatta Phatak3
1ALBA Synchrotron, Cerdanyola del Vallès, Barcelona 08290, Spain.
Abstract:
The development of magnetic nanostructures for applications in spintronics requires methods capable of visualizing their magnetization. Soft X-ray magnetic imaging combined with circular magnetic dichroism allows nanostructures up to 100-300 nm in thickness to be probed with resolutions of 20-40 nm. Here a new iterative tomographic reconstruction method to extract the three-dimensional magnetization configuration from tomographic projections is presented. The vector field is reconstructed by using a modified algebraic reconstruction approach based on solving a set of linear equations in an iterative manner. The application of this method is illustrated with two examples (magnetic nano-disc and micro-square heterostructure) along with comparison of error in reconstructions, and convergence of the algorithm.
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