title: Image deformation in field ion microscopy of faceted crystals.
abstract: We perform detailed numerical simulations of field ion microscopy images of faceted crystals and compare them with experimental observations. In contrast to the case of crystals with a smooth surface, for a faceted topography we find extreme deformations of the ion image. Local magnification is highly inhomogeneous and may vary by an order of magnitude: from 0.64 to 6.7. Moreover, the anisotropy of the magnification at a point located on the facet edge may reach a factor of 10.
authors.affiliation: Institute of Theoretical Physics, University of WrocŁaw, Plac Maksa Borna 9, 50-204 WrocŁaw, Poland.
authors.forename: Daniel
authors.initials: D
authors.lastname: Niewieczerzał
authors.forename: Czesław
authors.initials: C
authors.lastname: Oleksy
authors.forename: Andrzej
authors.initials: A
authors.lastname: Szczepkowicz