https://pubs.acs.org/doi/10.1021/acs.nanolett.0c00172 https://pubs.acs.org/doi/10.1021/acs.nanolett.0c00172 This was not the first work on this, but it's the f

https://pubs.acs.org/doi/10.1021/acs.nanolett.0c00172 https://pubs.acs.org/doi/10.1021/acs.nanolett.0c00172 This was not the first work on this, but it's the first that shows with a quick Google search while in the subway. Let me take some time to understand your comment. In the meanwhile, the whole field of superlaticces got a great boost with the first realization of moire systems using hBN, graphene and the like in 2013(?) by P. Kim and others. Before that, indeed, patterning superlattices from the bottom-up had been a laborious and mostly failing endeavor. If that's what you are referring too...