Title of article :
Is magnetic chiral dichroism feasible with electron vortices?
Author/Authors :
Schattschneider، نويسنده , , P. and Lِffler، نويسنده , , S. and Stِger-Pollach، نويسنده , , M. and Verbeeck، نويسنده , , J.، نويسنده ,
Abstract :
We discuss the feasibility of detecting magnetic transitions with focused electron vortex probes, suggested by selection rules for the magnetic quantum number. We theoretically estimate the dichroic signal strength in the L2,3 edge of ferromagnetic d metals. It is shown that under realistic conditions, the dichroic signal is undetectable for nanoparticles larger than ∼ 1 nm . This is confirmed by a key experiment with nanometer-sized vortices.
Keywords :
Orbital angular momentum , EMCD , Electron vortices , Inelastic scattering
Journal title :
Astroparticle Physics
