Tuning the Magnetic Properties at the Nano-Scale - Powder Diffraction Studies

PhD defence, Wednesday 21 June 2017. Cecilia Granados-Miralles

2017.06.21 | Helle Karvonen

Cecilia Granados-Miralles

During her studies, Cecilia Granados‑Miralles has used powder diffraction techniques to understand the relationship between the atomic structure and the macroscopic magnetic properties of materials. More specifically, Cecilia has used synchrotron radiation to follow in real‑time (in situ) the preparation of iron‑oxides‑based magnetic nanoparticles. Among others, Cecilia has studied the hydrothermal synthesis of SrFe12O19, or the preparation of CoFe2O4‑CoFe2 magnetic nanocomposites through a partial reduction of CoFe2O4 nanoparticles. The processes studied in situ have been successfully reproduced ex situ at a laboratory scale. A deep understanding of the preparation step is paramount to control the properties of the final material.

The PhD degree was completed at the Interdisciplinary Nanoscience Center (iNANO) and the Chemistry Department, Science and Technology, Aarhus University.

This résumé was prepared by the PhD student.

Time: Wednesday 21 June 2017 at 13:15
Place: 1514-213 Auditorium I), Department of Chemistry, Aarhus University
Title of dissertation: Exchange Coupling and Nano Structuring as a Means to Improve the Magnetic Performance of Ferrite Nanoparticles: In Situ and Ex Situ Powder Diffraction Studies
Contact information: Cecilia Granados-Miralles, e-mail: granados@chem.au.dk, tel.: +45 50174506
Members of the assessment committee:
Professor Petriina Paturi, Department of Physics and Astronomy, University of Turku, Finland
Senior Scientist Stefano Deledda, Institute for Energy Technology, IFE, Oslo, Norway
Professor Kurt V. Gothelf (chair), iNANO and Department of Chemistry, Aarhus University
Main supervisor:
Associate Professor Mogens Christensen, iNANO and the Department of Chemistry, Aarhus University
Co-supervisor:
Professor Bo Brummerstedt Iversen, iNANO and Department of Chemistry, Aarhus University
Language: The PhD dissertation will be defended in English

The defense is public.
The dissertation is available for reading at the Graduate School of Science and Technology/GSST, Ny Munkegade 120, building 1520, rooms 128-134, 8000 Aarhus C.

PhD defence
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Revised 22.06.2017