title: Dynamic scattering theory for dark-field electron holography of 3D strain fields.
abstract: Dark-field electron holography maps strain in crystal lattices into reconstructed phases over large fields of view. Here we investigate the details of the lattice strain-reconstructed phase relationship by applying dynamic scattering theory both analytically and numerically. We develop efficient analytic linear projection rules for 3D strain fields, facilitating a straight-forward calculation of reconstructed phases from 3D strained materials. They are used in the following to quantify the influence of various experimental parameters like strain magnitude, specimen thickness, excitation error and surface relaxation.
authors.affiliation: CEMES-CNRS 29, rue Jeanne Marvig B.P. 94347 F-31055 Toulouse Cedex, France; Institute of Structure Physics, Technische Universität Dresden, 01062 Dresden, Germany; TEMAT, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium. Electronic address: Axel.Lubk@yahoo.de.
authors.forename: Axel
authors.initials: A
authors.lastname: Lubk
authors.forename: Elsa
authors.initials: E
authors.lastname: Javon
authors.forename: Nikolay
authors.initials: N
authors.lastname: Cherkashin
authors.forename: Shay
authors.initials: S
authors.lastname: Reboh
authors.forename: Christophe
authors.initials: C
authors.lastname: Gatel
authors.forename: Martin
authors.initials: M
authors.lastname: Hÿtch
keywords: Dynamic scattering; Electron holography; Strain engineering