title: The spatial resolution of imaging using core-loss spectroscopy in the scanning transmission electron microscope.
abstract: The 'delocalization' of inelastic scattering is an important issue for the ultimate spatial resolution of core-loss spectroscopy in the electron microscope. This paper investigates the resolution of scanning transmission electron microscopy images for single, isolated atoms. Images are simulated from first principles using a nonlocal model for electron core-loss spectroscopy. The role of the width of the probe relative to the delocalization of the underlying ionization interaction is considered.
authors.affiliation: School of Physics, University of Melbourne, Vic. 3010, Melbourne, Australia.
authors.forename: E C
authors.initials: EC
authors.lastname: Cosgriff
authors.forename: M P
authors.initials: MP
authors.lastname: Oxley
authors.forename: L J
authors.initials: LJ
authors.lastname: Allen
authors.forename: S J
authors.initials: SJ
authors.lastname: Pennycook
mesh_terms: D002118:Calcium / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D008274:Magnesium / Q000737:chemistry*; D017348:Microscopy, Electron, Scanning Transmission / Q000295:instrumentation* / Q000379:methods; D036103:Nanotechnology / Q000379:methods; D013057:Spectrum Analysis / Q000295:instrumentation* / Q000379:methods
chemical_list: D002244:Carbon; D008274:Magnesium; D002118:Calcium