title: New approach for the dynamical simulation of CBED patterns in heavily strained specimens.
abstract: A new method for the dynamical simulation of convergent beam electron diffraction (CBED) patterns is proposed. In this method, the three-dimensional stationary Schrödinger equation is replaced by a two-dimensional time-dependent equation, in which the direction of propagation of the electron beam, variable z, stands as a time. We demonstrate that this approach is particularly well-suited for the calculation of the diffracted intensities in the case of a z-dependent crystal potential. The corresponding software has been developed and implemented for simulating CBED patterns of various specimens, from perfect crystals to heavily strained cross-sectional specimens. Evidence is given for the remarkable agreement between simulated and experimental patterns.
authors.affiliation: CEMES, CNRS, Toulouse Cedex 4, France. florent@cemes.fr
authors.forename: F
authors.initials: F
authors.lastname: Houdellier
authors.forename: A
authors.initials: A
authors.lastname: Altibelli
authors.forename: C
authors.initials: C
authors.lastname: Roucau
authors.forename: M J
authors.initials: MJ
authors.lastname: Casanove