File:Bi2Te3-Sb2Te3-TEM2.jpg

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Description HAADF image of atomic resolution. The large overview image reveals the high quality of the crystal. Van der Waals gap separated quintuple layers can be observed. The contrast in the image is related to the size of the atoms on which electrons are scattered, that is, chemical contrast is obtained. The right inset in a shows a magnified region across the interface of the two layers with a structural model superimposed (blue atoms, Bi; green atoms, Sb and red atoms, Te).
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Source http://www.nature.com/articles/ncomms9816
Author Markus Eschbach, Ewa Młyńczak, Jens Kellner, Jörn Kampmeier, Martin Lanius, Elmar Neumann, Christian Weyrich, Mathias Gehlmann, Pika Gospodarič, Sven Döring, Gregor Mussler, Nataliya Demarina, Martina Luysberg, Gustav Bihlmayer, Thomas Schäpers, Lukasz Plucinski, Stefan Blügel, Markus Morgenstern, Claus M. Schneider & Detlev Grützmacher
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current03:20, 28 March 2017Thumbnail for version as of 03:20, 28 March 2017808 × 668 (285 KB)Materialscientist{{Information |Description= HAADF image of atomic resolution. The large overview image reveals the high quality of the crystal. Van der Waals gap separated quintuple layers can be observed. The contrast in the image is related to the size of the atoms...
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