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figure 6:Cross-section HRTEM micrographs of typical scrape of (a), further magnification (b) marked with black cirque in (a),  and further magnification (c), (d), (e), and (f) marked with black cirque in (b) of Cd0.96Zn0.04Te (111) crystal ground by a #1500 diamond grinding wheel
Cross-section HRTEM micrographs of typical ground scrape are shown in Fig. 6. Although the scrape adheres on the ground surface, as shown in Fig. 6a, it looks like a scrape that will fall off the ground surface, thus it is selected as the investigating object. It is very interesting that the scrape marked with black cirque in Fig. 6a seems like a head of a dog, and the mouth is more like a scrape, thus it is further magnified in Fig. 6b. Several crystal boundaries are observed, and the crystal grain size is about 20 nm, as shown in Fig. 6b and c, which is bigger than that in Fig. 5c and d, indicating the more intense removal force generated on the scrape. About 1 nm amorphous layer is at the top surface, and obvious crystal boundaries areobserved in Fig. 6e and f, meaning the deformation form of removed scrape is the transition from the single crystal to multi-crystal.
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