Fig. 2 | Nature Communications

Fig. 2

From: Disorder in Mn+1AXn phases at the atomic scale

Fig. 2

Direct observation of cation antisite defect. a Scanning transmission electron microscopic high-angle annular dark-field (HAADF) image of Ti3AlC2 after irradiation at 3 × 1013 cm−2 along \(\left[ {{\mathrm{11}}\bar 20} \right]\). The white arrows indicate the initial Al layers, whose contrast changed compared to the initial hex-Ti3AlC2. b–c Contrast profiles along lines 1 and 2 in a, respectively, which directly show the variation of the contrast (indicated by the blue arrows) due to the formation of TiAl-AlTi antisite defects induced by ion irradiation. The scale bar on the HAADF image correspond to 1 nm

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