Image deformation in field ion microscopy of faceted crystals |
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| Authors: | Daniel Niewieczerza? Czes?aw Oleksy Andrzej Szczepkowicz |
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| Affiliation: | 1. Institute of Theoretical Physics, University of Wroc?aw, Plac Maksa Borna 9, 50-204 Wroc?aw, Poland;2. Institute of Experimental Physics, University of Wroc?aw, Plac Maksa Borna 9, 50-204 Wroc?aw, Poland |
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| 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. |
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| Keywords: | Field ion microscopy Faceted surfaces Image deformation |
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