EMCD with an electron vortex filter: Limitations and possibilities
arXiv:1703.09156 · doi:10.1016/j.ultramic.2017.03.019
Abstract
We discuss the feasibility of detecting spin polarized electronic transitions with a vortex filter. This approach does not rely on the principal condition of the standard energy loss magnetic chiral dichroism (EMCD) technique, the precise alignment of the crystal, and thus paves the way for the application of EMCD to new classes of materials and problems. The dichroic signal strength in the L-edge of ferromagnetic cobalt is estimated on theoretical grounds. It is shown that magnetic dichroism can, in principle, be detected. However, as an experimental test shows, count rates are currently too low under standard conditions.
References in corpus (7)
- Electron vortex beams in a magnetic field: A new twist on Landau levels and Aharonov-Bohm states
- Achieving atomic resolution magnetic dichroism by controlling the phase symmetry of an electron probe
- Scattering of electron vortex beams on a magnetic crystal: towards atomic resolution magnetic measurements
- Topological analysis of paraxially scattered electron vortex beams
- Peculiar Rotation of Electron Vortex Beams
- Quantitative measurement of orbital angular momentum in electron microscopy
- On-column 2p bound state with topological charge \pm1 excited by an atomic-size vortex beam in an aberration-corrected scanning transmission electron microscope
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- Elastic propagation of fast electron vortices through amorphous materials
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