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. 2021 May 11;12:432–439. doi: 10.3762/bjnano.12.35

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Copyright © 2021, Liu et al.

This is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0). Please note that the reuse, redistribution and reproduction in particular requires that the author(s) and source are credited and that individual graphics may be subject to special legal provisions.

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(a) Atomic resolution of a corrugated KBr line structure (A₂ = 300 pm, Δf₂ = −125 Hz, γ = −1.02 pN·nm^1/2). (b) Atomic line profiles of two orthogonal lattice directions in red (with a single-atom duplication along “AAA”) and in blue (with a triple-atom duplication along “BBC”) indicated in (a), respectively.