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Fig. 1 | Advanced Structural and Chemical Imaging

Fig. 1

From: Maximising the resolving power of the scanning tunneling microscope

Fig. 1

STM data from the Si(111)-(7 × 7) reconstruction. a Raw single frame (image width 33.2 nm, Vs = 1.3 V, It = 0.17 nA). b Image after ramp-subtraction, alignment, scan-correction and averaging of 41 sequential frames. c Magnified region from a (image width 8.3 nm). d Magnified region from b. e Fitting plot of noise power versus the number of summed frames. The plot shows the reduction in noise power with increasing number of averaged images

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