Applied Microscopy : eISSN 2287-4445 / pISSN 2287-5123

Fig. 4.

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Fig. 4. (A) and (D) are HAADF-STEM images from NBT along [001] and [110] projections, respectively. (B) and (C) are magnifi ed ABF-STEM images from the region indicated by the red and blue rectangles in image (A), respectively. (E) and (F) are magnifi ed ABF-STEM images from the region indicated by green and orange rectangles in image (D). Th e unit cell structure along the [001] or [110] projections was superimposed into each ABF image, where the orange, gray, and red spheres indicate A-site (Na & Bi), Ti, and O atomic columns, respectively. HAADF, high-angle annular dark-fi eld; STEM, scanning transmission electron microscopy; NBT, Na1/2Bi1/2TiO3; ABF, annular bright fi eld.
Applied Microscopy 2012;42:164-73
© 2012 Applied Microscopy