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. 2018 Apr 12;9:1413. doi: 10.1038/s41467-018-03723-w

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — Van der Waals superlattices comprising 29 alternating layers of graphite and hBN. a Left panels: Optical microscope images of graphite (G) and hBN utilized to assemble vdW heterostructures. Right panels: The vector-drawing line-edges of G and hBN flakes extracted from the edge detection algorithms applied to the optical microscope images taken in the stamping apparatus before pick-up. The scale bars correspond to 20 μm. b Optical microscope image of G/hBN vdW superlattice structures. The scale bar corresponds to 20 μm. c Superimposed edges of G and hBN