Parameter-free extraction of EMCD

Abstract

We present a parameter-free method of extraction of the electron magnetic circular dichroism spectra from energy-filtered diffraction patterns measured on crystalline specimen. The method is based on multivariate curve resolution technique. The main advantage of the proposed method is that it allows extraction of the magnetic signal regardless of the symmetry and orientation of the crystal. In other words, our new method overcomes difficulties caused by complexity of dynamical diffraction effects.