Atomic-resolution element mapping with energy-dispersive X-ray detector

Professor L. J. Allen (University of Melbourne, Australia) and his colleagues have recently demonstrated atomic-resolution chemical mapping in a scanning transmission electron microscope (STEM). They obtained Sr and Ti images for SrTiO₃. Such images are directly interpretable mainly because the effective ionization interaction is localized. For more information, see the paper, "Atomic-resolution chemical mapping using energy-dispersive x-ray spectroscopy", A. J. D'Alfonso et al., Phys. Rev. B81, 100101(R) (2010).