Articles tagged "EMCD"

The 16th European Microscopy Congress 2016
Ten years of EMCD: what has been achieved
Peter Schattschneider (1, 2), Thomas Schachinger (2, 1), Stefan Löffler (3, 1)
1. USTEM, TU Wien, Vienna, Autriche 2. Institue of Solid State Physics, TU Wien, Vienna, Autriche 3. Department of Materials Science and Engineering, McMaster University, Hamilton, Canada
Energy loss magnetic chiral dichroism (EMCD), established in 2006 [1] celebrates its 10th anniversary. EMCD is the TEM equivalent of the X-ray magnetic circular dichroism…
The 16th European Microscopy Congress 2016
Nanoscale maps of magnetic behavior using STEM-EMCD
Thomas Thersleff (1), Shunsuke Muto (2), Jakob Spiegelberg (3), Ján Rusz (3), Klaus Leifer (1)
1. Department of Engineering Sciences, Uppsala University, Uppsala, Suède 2. Institute of Materials & Systems for Sustainability (IMaSS), Nagoya University, Nagoya, Japon 3. Department of Physics and Astronomy, Uppsala University, Uppsala, Suède
Key to the advancement of magnetic materials is the exploitation of emergent magnetic behavior arising from nanoscale confinement. A comprehensive understanding of this behavior requires…
The 16th European Microscopy Congress 2016
Towards atomic magnetic measurements with single electron vortex beams on FePt nanocubes
Darius Pohl (1), Jan Rusz (2), Jakob Spiegelberg (2), Sebastian Schneider (1, 3), Peter Tiemeijer (4), Kornelius Nielsch (1), Bernd Rellinghaus (1)
1. Institute for Metallic Materials, IFW Dresden, Dresden, Allemagne 2. Department of Physics and Astronomy, Uppsala University, Uppsala, Suède 3. Institute for Solid State Physics, TU Dresden, Dresden, Allemagne 4. FEI Company, Eindhoven, Pays-Bas
X-ray magnetic circular dichroism is a well-established method to study element specific magnetic properties of a material, while electron energy-loss magnetic chiral dichroism (EMCD), which…
The 16th European Microscopy Congress 2016
Towards EMCD with an electron vortex filter
Thomas Schachinger (1, 2), Andreas Steiger-Thirsfeld (2), Stefan Löffler (2, 3), Michael Stöger-Pollach (2, 1), Sebastian Schneider (4), Darius Pohl (4), Bernd Rellinghaus (4), Peter Schattschneider (1, 2)
1. Institute of Solid State Physics, Vienna University of Technology, Vienna, Autriche 2. USTEM, Vienna University of Technology, Vienna, Autriche 3. Department of Materials Science and Engineering, McMaster, Hamilton, Canada 4. Institute for Metallic Materials, IFW Dresden, Dresden, Allemagne
The electrons’ wavefront can be arbitrarily shaped by placing holographic masks (HMs) in the condenser system of a TEM. Using HMs with dislocation gratings, it…
The 16th European Microscopy Congress 2016
Quantifying magnetism on the nanometer scale: EMCD on individual FePt nanoparticles
Sebastian Schneider (1, 2), Darius Pohl (1), Stefan Löffler (3, 4), Deepa Kasinathan (5), Jan Rusz (6), Peter Schattschneider (3, 7), Ludwig Schultz (1, 2), Bernd Rellinghaus (1)
1. IFW Dresden, Institute for Metallic Materials, Dresden, Allemagne 2. TU Dresden, Institut für Festkörperphysik, Dresden, Allemagne 3. Vienna University of Technology, USTEM, Vienna, Autriche 4. McMaster University, Department of Materials Science and Engineering, Hamilton, Canada 5. MPI CPfS, Department Physics of Correlated Matter, Dresden, Allemagne 6. Uppsala University, Department of Physics and Astronomy, Uppsala, Suède 7. Vienna University of Technology, Institute of Solid State Physics, Vienna, Autriche
Electron energy-loss magnetic chiral dichroism (EMCD), which is the electron wave analogue of X-ray magnetic circular dichroism (XMCD), offers the possibility to study magnetic properties…
The 16th European Microscopy Congress 2016
Separating Magnetic and Non-magnetic Signals at the Fe/MgO Interface
Jakob Spiegelberg (1), Thomas Thersleff (2), Ján Rusz (1)
1. Department of Physics and Astronomy, Uppsala University, Uppsala, Suède 2. Department of Engineering Sciences, Uppsala University, Uppsala, Suède
Despite various efforts, it remains an experimentally challenging task to access magnetic properties at(sub) nanoscale. One route towards a direct measurement of magnetism is the…
The 16th European Microscopy Congress 2016
In-situ observation of structural transition, ferromagnetic order breaking and magnetocrystalline anisotropy by EMCD in MnAs/GaAs(001)
Xiaoxiao Fu (1), Bénédicte Warot-Fonrose (1), Rémi Arras (1), Dominique Demaille (2), Mahmoud Eddrief (2), Virginie Serin (1)
1. CEMES, CNRS, Univ Toulouse, Toulouse, France 2. Institut des Nanosciences de Paris, CNRS, Univ Paris 6, Paris, France
EMCD (Energy-Loss Magnetic Chiral Dichoism), an emerging technique based on energy-loss spectroscopy (EELS) in a transmission electron microscopy (TEM) [1-2], aims at…
The 16th European Microscopy Congress 2016
Novel spectroscopy with atomic-size aberrated electron probes in stem
Juan Carlos Idrobo (1), Ján Rusz (2), Jakob Spiegelberg (2), Michael A. McGuire (3), Christopher T. Symons (4), Ranga Raju Vatsavai (4), Claudia Cantoni (3), Andrew R Lupini (3)
1. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Etats-Unis 2. Department of Physics and Astronomy, Uppsala University, Uppsala, Suède 3. Materials Science and Technology Division , Oak Ridge National Laboratory, Oak Ridge, Etats-Unis 4. Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, Etats-Unis
it has been theoretically argued that atomic-size electron probes with customized phase distributions can detect electron magnetic circular dichroism (EMCD) [1]. Based on this prediction…
The 16th European Microscopy Congress 2016
Convergent-Beam EMCD: Benefits, Pitfalls, and Applications
Stefan Löffler (1, 2), Walid Hetaba (1)
1. USTEM, TU Wien, Wien, Autriche 2. Department of Materials Science and Engineering, McMaster University, Hamilton, Canada
Energy-loss magnetic chiral dichroism (EMCD) [1] is a state-of-the-art technique to measure magnetic properties on the nanoscale using TEM and EELS. Since its first experimental…
The 16th European Microscopy Congress 2016
EMCD investigation of the Verwey-transition in magnetite
Walid Hetaba (1, 2), Michael Stöger-Pollach (1)
1. University Service Centre for Transmission Electron Microscopy, Technische Universität Wien, Wien, Autriche 2. Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion, Mülheim an der Ruhr, Allemagne
Magnetite is of interest in physics as well as in chemistry, for example because of its surface chemistry [1]. Furthermore, the investigation of the magnetic…