Multi-scale simulations of field ion microscopy images—Image compression with and without the tip shank

Multi-scale simulations of field ion microscopy images of faceted and hemispherical samples are performed using a 3D model. It is shown that faceted crystals have compressed images even in cases with no shank. The presence of the shank increases the compression of images of faceted crystals quantitatively in the same way as for hemispherical samples. It is hereby proven that the shank does not influence significantly the local, relative variations of the magnification caused by the atomic-scale structure of the sample.

► Multi-scale simulations of field ion microscopy images.
► Faceted and hemispherical samples with and without shank.
► Shank causes overall compression, but does not influence local magnification effects.
► Image compression linearly increases with the shank angle.
► Shank changes compression of image of faceted tip in the same way as for smooth sample.