title: Elastic scattering of 200 keV electrons in elemental solids: experimental observation of atomic-number-dependent oscillatory behavior.
abstract: Mean free path of elastic electron scattering λ(el) has been measured with a 200 keV transmission electron microscope for a wide range of stable elemental solids. An oscillating behavior versus atomic number Z has been revealed, such that, within one row of the periodic table, λ(el) exhibits minimum (maximum) for elements with completed (empty) outer d shells. These λ(el)(Z) oscillations are attributed to Z dependence of the atomic density, and their importance for the interpretation of electron microscope images is demonstrated.
authors.affiliation: Quantum Dot Research Center, National Institute for Materials Science, 3-13 Sakura, Tsukuba 305-0005, Japan.
authors.forename: Konstantin
authors.initials: K
authors.lastname: Iakoubovskii
authors.forename: Kazutaka
authors.initials: K
authors.lastname: Mitsuishi