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3D reconstruction of magnetization from dichroic soft X-ray transmission tomography

AuthorsHierro-Rodríguez, A. ; Gürsoy, Doga; Phatak, Charudatta; Quirós, Carlos ; Sorrentino, Andrea; Álvarez-Prado, L. M. ; Vélez, María ; Martín, José Ignacio ; Alameda, J. M. ; Pereiro, Eva; Ferrer, S.
KeywordsSoft x-ray transmission microscopy
X-ray transmission tomography
Magnetization configuration reconstruction
Vector field tomography
Issue Date2018
PublisherInternational Union of Crystallography
CitationJournal of Synchrotron Radiation 25: 1144-1152 (2018)
AbstractThe 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.
Publisher version (URL)https://doi.org/10.1107/S1600577518005829
Identifiersdoi: 10.1107/S1600577518005829
e-issn: 1600-5775
issn: 0909-0495
Appears in Collections:(CINN) Artículos
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