A Direct Method for Orientation Determination Using TEM (II). Experimental Example

Abstract

A recently described direct method for orientation determination using a transmission electron microscope (TEM) is demonstrated on an experimental example.Eine kiirzlich publizierte direkte Methode zur Orientierungsbestimmung mit einem Transmissionselektronenmikroskop (TEM) wird an einem experimentellen Beispiel demonstriert.

Making sense of nanocrystal lattice fringes

“…It relies on the 3D reconstruction of lattice periodicities from images taken at different tilts. As in diffraction-based techniques 8,9,10,11,12,13,14 for obtaining 3D crystallographic information, and imagebased techniques in stereomicroscopy 15,16,17,18,19,20,21,22 and electron tomography 23,24,25,26,27,28,29,30,31 , 3D information is being inferred from slices of 2D projections. As followup, a recent direct determination of lattice parameters in three dimensions from images of a nanocrystal at two tilts 32 suggested that such lattice-only analysis strategies could be elegantly visualized using fringevisibility maps that were quite sensitive to the effects of crystal thickness.…”