The magic angle: a solved mystery

Ultramicroscopy. 2004 Dec;102(1):61-6. doi: 10.1016/j.ultramic.2004.08.006.

Abstract

We resolve the long-standing mysterious discrepancy between the experimental magic angle in EELS--approximately 2theta(E)--and the quantum mechanical prediction of approximately 4theta(E). A relativistic approach surpassing the usually applied kinematic correction yields a magic angle close to the experimental value. The reason is that the relativistic correction of the inelastic scattering cross section in anisotropic systems is significantly higher than in isotropic ones.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms
  • Anisotropy
  • Models, Theoretical*
  • Quantum Theory
  • Spectroscopy, Electron Energy-Loss*