Fig. 4: Atomic electron tomography of MPEA-2 particle.
From: Three-dimensional network of multi-fold twins enabled by geometrically necessary amorphous zones
a Reconstructed image slice of MPEA-2 at a height of 0 nm, with a thickness of 3.4 Å. The orange-highlighted region indicates the main area analyzed in AET. Scale bar, 5 nm. b 3D positions of individual atoms are illustrated, showing five TBs (light blue), extension regions (light yellow), and the central core (light red), as revealed by AET. Scale bar, 5 nm. c The migration of five TBs and the area of GNAZ at different heights. d The angles between five TBs at different heights, the dashed lines in each represent 70.53° and 72° respectively. e The area size of the GNAZ inversely correlates with the standard error of the twin angles and randomly varies with the height.
