Computational design of moiré assemblies aided by artificial intelligence


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{
  "created": "2021-01-19T15:46:45.152704+00:00", 
  "metadata": {
    "publication_date": "Jun 01, 2021, 11:32:11", 
    "mcid": "2021.81", 
    "_files": [
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        "key": "BandStructures.zip", 
        "description": "Tight binding band structures of twisted multi-layer graphene superlattices.", 
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      {
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        "size": 1002, 
        "checksum": "md5:029858f6c241a93647a7068f59beb6db"
      }
    ], 
    "id": "721", 
    "title": "Computational design of moir\u00e9 assemblies aided by artificial intelligence", 
    "is_last": true, 
    "description": "Two-dimensional (2D) layered materials offer a materials platform with potential applications from energy to information processing devices. Although some single- and few-layer forms of materials such as graphene and transition metal dichalcogenides have been realized and thoroughly studied, the space of arbitrarily layered assemblies is still mostly unexplored. The main goal of this work is to demonstrate precise control of layered materials' electronic properties through careful choice of the constituent layers, their stacking, and relative orientation. Physics-based and AI-driven approaches for the automated planning, execution, and analysis of electronic structure calculations are applied to layered assemblies based on prototype one-dimensional (1D) materials and realistic 2D materials. We find it is possible to routinely generate moir\u00e9 band structures in 1D with desired electronic characteristics such as a band gap of any value within a large range, even with few layers and materials (here, four and six, respectively). We argue that this tunability extends to 2D materials by showing the essential physical ingredients are already evident in calculations of two-layer MoS2 and multi-layer graphene moir\u00e9 assemblies.", 
    "keywords": [
      "two-dimensional materials", 
      "electronic structure", 
      "high-throughput calculations", 
      "artificial neural networks"
    ], 
    "references": [
      {
        "doi": "10.1063/5.0044511", 
        "type": "Journal reference", 
        "citation": "G. A. Tritsaris, S. Carr, G. R. Schleder, Applied Physics Reviews 8, 031401 (2021)"
      }, 
      {
        "type": "Preprint", 
        "url": "https://arxiv.org/abs/2011.04795", 
        "citation": "G. A. Tritsaris, S. Carr, G. R. Schleder, arXiv:2011.04795"
      }
    ], 
    "license": "Creative Commons Attribution 4.0 International", 
    "version": 1, 
    "contributors": [
      {
        "familyname": "Tritsaris", 
        "affiliations": [
          "John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA"
        ], 
        "givennames": "Georgios", 
        "email": "gtritsaris@seas.harvard.edu"
      }, 
      {
        "familyname": "Carr", 
        "affiliations": [
          "Brown Theoretical Physics Center and Department of Physics, Brown University, Providence, Rhode Island 02912, USA"
        ], 
        "givennames": "Stephen"
      }, 
      {
        "familyname": "Schleder", 
        "affiliations": [
          "John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA", 
          "Federal University of ABC (UFABC), Santo Andr\u00e9, S\u00e3o Paulo 09210-580, Brazil"
        ], 
        "givennames": "Gabriel R."
      }
    ], 
    "owner": 13, 
    "edited_by": 13, 
    "conceptrecid": "720", 
    "status": "published", 
    "license_addendum": null, 
    "_oai": {
      "id": "oai:materialscloud.org:721"
    }, 
    "doi": "10.24435/materialscloud:7e-pc"
  }, 
  "updated": "2021-07-12T13:45:41.129929+00:00", 
  "id": "721", 
  "revision": 9
}