Selected area electron diffraction pdf

In addition, the precession integrates the diffraction intensities through the Bragg condition, which provides data sets less subject to minor sample tilt, and makes the interpretations of pattern symmetry more reliable.

Figure 1. Figure 2. Figure 3. Electron diffraction of mayenite: a precession off, b precession on [6]. Poole, Philiops Tech. Kossel, G. Buerger, The precession method in X-ray crystallography. John Wiley and Sons, Inc. New York. Vincent, P. Midgley, Ultramicroscopy , 53 , , Stadelmann Kiho , Makromol.

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Selected-area small-angle electron diffraction. J Mater Sci 2, — Download citation. Received : 15 May Issue Date : September Anyone you share the following link with will be able to read this content:. Sorry, a shareable link is not currently available for this article. Provided by the Springer Nature SharedIt content-sharing initiative. Skip to main content. Search SpringerLink Search.

References 1. Google Scholar 2. Google Scholar 3. Google Scholar 4. Google Scholar 5. Google Scholar 6. CBED experiments with a nanometer-sized electron probe do not show any indication of the presence of a nanodomain around this temperature. Arrows indicate incommensurate reflections.

Strong fundamental reflections in a — c show symmetry m perpendicular to [], owing to the space group Cmc 2 1. Incommensurate reflections indicated by black arrows in a do not show the symmetry m perpendicular to the [] direction. The appearance of A 2 - and B 2 -type dynamical extinction lines black cross lines on reflection disks in d — f indicates that the 2 1 -screw axis along the c axis of SN remains almost unchanged by Ba doping. Black arrows indicate the direction of tilt of the NbO 6 octahedron about the b axis.

The unit cell of the averaged structure is depicted as the shaded region. The dotted black line in the DF image indicates the ferroelectric domain boundary. Learn about our response to COVID , including freely available research and expanded remote access support.

Materials 3 , — Published 12 April Research Areas.