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Imaging Magnetism in Nanostructures using Electron Holography

Imaging Magnetism in Nanostructures using Electron Holography

Objective

"Future developments in the control, functionalization and manipulation of magnetic nanoparticles and nanoscale magnetic devices require an understanding of collinear and non-collinear spin configurations and correlated changes of electronic structure on the sub-nanometer scale.

In this project, an experimental methodology will be developed to allow magnetic spin structures in differently shaped nanomagnets to be visualized quantitatively and correlated with their crystallographic, compositional and defect structures. The project is based on the development of electron holography in the transmission electron microscope. It aims to provide quantitative measurements of internal magnetic fields in nanoparticles and devices that have characteristic dimensions of between 2 and 20 nm with a spatial resolution of better than 1 nm, both in projection and in three dimensions. Developments in instrumentation will allow the measurements to be acquired in situ in the electron microscope at elevated and reduced specimen temperatures and in the presence of oxidizing and reducing gases.

The project is highly interdisciplinary, requiring close collaboration between scientists working on nanoparticle synthesis, device fabrication, magnetic modeling, computational mathematics and characterization techniques. It will provide a powerful new analytical tool at the frontiers of the highest spatial resolution analysis of spin and electronic structures that will have far-reaching impact beyond a specific research domain, not only in fundamental magnetism but also for applications that include magnetic recording, spintronics, catalysis and biomedical applications of magnetic nanoparticles.

The methodology will also benefit European industry by providing a new leading edge in the fast growing international market of in situ transmission electron microscopy."
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Principal Investigator

Rafal Edward Dunin-Borkowski (Prof.)

Host institution

FORSCHUNGSZENTRUM JULICH GMBH

Address

Wilhelm Johnen Strasse
52428 Julich

Germany

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 1 984 340

Principal Investigator

Rafal Edward Dunin-Borkowski (Prof.)

Administrative Contact

Gelinde Riese (Mrs.)

Beneficiaries (3)

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FORSCHUNGSZENTRUM JULICH GMBH

Germany

EU Contribution

€ 1 984 340

UNIVERSITAET DUISBURG-ESSEN

Germany

EU Contribution

€ 330 000

THE UNIVERSITY OF EDINBURGH

United Kingdom

EU Contribution

€ 184 800

Project information

Grant agreement ID: 320832

Status

Closed project

  • Start date

    1 April 2013

  • End date

    31 March 2018

Funded under:

FP7-IDEAS-ERC

  • Overall budget:

    € 2 499 140

  • EU contribution

    € 2 499 140

Hosted by:

FORSCHUNGSZENTRUM JULICH GMBH

Germany