3D reconstruction of magnetization from dichroic soft X-ray transmission tomography.
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.
['Hierro-Rodriguez|Aurelio|A|0000-0001-6600-7801', 'Gürsoy|Doga|D|', 'Phatak|Charudatta|C|0000-0002-8931-0296', 'Quirós|Carlos|C|0000-0002-0591-5563', 'Sorrentino|Andrea|A|0000-0002-3235-8950', 'Álvarez-Prado|Luis Manuel|LM|0000-0002-3890-4983', 'Vélez|Maria|M|0000-0003-0311-7434', 'Martín|José Ignacio|JI|', 'Alameda|José Maria|JM|', 'Pereiro|Eva|E|0000-0001-7626-5935', 'Ferrer|Salvador|S|']
X-ray transmission tomography magnetization configuration reconstruction soft X-ray transmission microscopy vector field tomography