New algorithm for efficient Bloch-waves calculations of orientation-sensitive ELNES

We discuss in detail the Bloch waves method for the calculation of energy and orientation dependent scattering cross-section for inelastic scattering of electrons on crystals. Convergence properties are investigated and a new algorithm with superior timing and accuracy is described. The new method is applied to calculations of intensity of weakly excited spots, maps of magnetic signal, and tilt series from zone axis orientation towards three-beam orientation.

► New algorithm for the calculation of ELNES with Bloch waves method is described.
► A favorable scaling of computational costs is demonstrated.
► Comparison to other approaches to beam and/or Bloch waves selection is shown.
► The method is applied for tilt series, EMCD calculations and compared to ICSC code.