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

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. In conclusion, 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.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [4]; ORCiD logo [4];  [4];  [4]; ORCiD logo [5];  [5]
  1. Cerdanyola del Valles, Barcelona (Spain); Univ. of Glasgow, Glasgow (United Kingdom)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Univ. de Oviedo, Oviedo (Spain); Centro de Investigacion en Nanomateriales y Nanotecnologia, CINN (CSIC - Univ. de Oviedo), El Entrego (Spain)
  5. Cerdanyola del Valles, Barcelona (Spain)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
Spanish Ministerio de Economia y Competitividad (MINECO); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1461830
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Synchrotron Radiation (Online)
Additional Journal Information:
Journal Name: Journal of Synchrotron Radiation (Online); Journal Volume: 25; Journal Issue: 4; Journal ID: ISSN 1600-5775
Publisher:
International Union of Crystallography
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; soft X-ray transmission microscopy; X-ray transmission tomography; vector field tomography; magnetization configuration reconstruction

Citation Formats

Hierro-Rodriguez, Aurelio, Gürsoy, Doga, Phatak, Charudatta, Quirós, Carlos, Sorrentino, Andrea, Álvarez-Prado, Luis Manuel, Vélez, Maria, Martín, José Ignacio, Alameda, José Maria, Pereiro, Eva, and Ferrer, Salvador. 3D reconstruction of magnetization from dichroic soft X-ray transmission tomography. United States: N. p., 2018. Web. doi:10.1107/S1600577518005829.
Hierro-Rodriguez, Aurelio, Gürsoy, Doga, Phatak, Charudatta, Quirós, Carlos, Sorrentino, Andrea, Álvarez-Prado, Luis Manuel, Vélez, Maria, Martín, José Ignacio, Alameda, José Maria, Pereiro, Eva, & Ferrer, Salvador. 3D reconstruction of magnetization from dichroic soft X-ray transmission tomography. United States. doi:10.1107/S1600577518005829.
Hierro-Rodriguez, Aurelio, Gürsoy, Doga, Phatak, Charudatta, Quirós, Carlos, Sorrentino, Andrea, Álvarez-Prado, Luis Manuel, Vélez, Maria, Martín, José Ignacio, Alameda, José Maria, Pereiro, Eva, and Ferrer, Salvador. Wed . "3D reconstruction of magnetization from dichroic soft X-ray transmission tomography". United States. doi:10.1107/S1600577518005829. https://www.osti.gov/servlets/purl/1461830.
@article{osti_1461830,
title = {3D reconstruction of magnetization from dichroic soft X-ray transmission tomography},
author = {Hierro-Rodriguez, Aurelio and Gürsoy, Doga and Phatak, Charudatta and Quirós, Carlos and Sorrentino, Andrea and Álvarez-Prado, Luis Manuel and Vélez, Maria and Martín, José Ignacio and Alameda, José Maria and Pereiro, Eva and Ferrer, Salvador},
abstractNote = {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. In conclusion, 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.},
doi = {10.1107/S1600577518005829},
journal = {Journal of Synchrotron Radiation (Online)},
number = 4,
volume = 25,
place = {United States},
year = {2018},
month = {5}
}

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