Detection of magnetic circular dichroism using a transmission electron microscope

P. Schattschneider (), S. Rubino, C. Hébert, J. Rusz, J. Kuneš, P. Novák, E. Carlino, M. Fabrizioli, G. Panaccione and G. Rossi
Additional contact information
P. Schattschneider: Service Centre for Transmission Electron Microscopy, Wiedner Hauptstraße 8-10/052, and Institut für Festkörperphysik, Wiedner Hauptstraße 8-10/138, Technische Universität Wien
S. Rubino: Service Centre for Transmission Electron Microscopy, Wiedner Hauptstraße 8-10/052, and Institut für Festkörperphysik, Wiedner Hauptstraße 8-10/138, Technische Universität Wien
C. Hébert: Service Centre for Transmission Electron Microscopy, Wiedner Hauptstraße 8-10/052, and Institut für Festkörperphysik, Wiedner Hauptstraße 8-10/138, Technische Universität Wien
J. Rusz: Institute of Physics ASCR
J. Kuneš: Institute of Physics ASCR
P. Novák: Institute of Physics ASCR
E. Carlino: TASC INFM-CNR National Laboratory, Area Science Park, S.S.14, Km 163.5
M. Fabrizioli: TASC INFM-CNR National Laboratory, Area Science Park, S.S.14, Km 163.5
G. Panaccione: TASC INFM-CNR National Laboratory, Area Science Park, S.S.14, Km 163.5
G. Rossi: TASC INFM-CNR National Laboratory, Area Science Park, S.S.14, Km 163.5

Nature, 2006, vol. 441, issue 7092, 486-488

Abstract: EM with a twist The electron microscope, already a powerful research instrument, could become even more powerful following the discovery that magnetic circular dichroism can be detected with a conventional transmission electron microscope. Materials display magnetic circular dichroism if the absorption of left and right circularly polarized light differs in the presence of an applied magnetic field. Application of this effect using synchrotron X-ray photons is a powerful tool for the investigation of magnetic phenomena. The new technique — EMCD or energy loss magnetic chiral dichroism — exploits the similarities between X-ray absorption and inelastic electron scattering to give a TEM capabilities normally associated with expensive synchrotrons. EMCD could be useful in many fields including spintronics and nanomagnetism.

Date: 2006
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DOI: 10.1038/nature04778

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