title: Spectroscopic imaging of single atoms within a bulk solid.
abstract: The ability to localize, identify, and measure the electronic environment of individual atoms will provide fundamental insights into many issues in materials science, physics, and nanotechnology. We demonstrate, using an aberration-corrected scanning transmission electron microscope, the spectroscopic imaging of single La atoms inside CaTiO3. Dynamical simulations confirm that the spectroscopic information is spatially confined around the scattering atom. Furthermore, we show how the depth of the atom within the crystal may be estimated.
authors.affiliation: Condensed Matter Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831-6030, USA.
authors.forename: M
authors.initials: M
authors.lastname: Varela
authors.forename: S D
authors.initials: SD
authors.lastname: Findlay
authors.forename: A R
authors.initials: AR
authors.lastname: Lupini
authors.forename: H M
authors.initials: HM
authors.lastname: Christen
authors.forename: A Y
authors.initials: AY
authors.lastname: Borisevich
authors.forename: N
authors.initials: N
authors.lastname: Dellby
authors.forename: O L
authors.initials: OL
authors.lastname: Krivanek
authors.forename: P D
authors.initials: PD
authors.lastname: Nellist
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