{
  "abstract": "Strain-gradient engineering via out-of-plane wrinkling offers a powerful route to tune electronic and electromechanical properties in two-dimensional (2D) materials. Here, we systematically investigate the electronic and flexoelectric response of wrinkled Janus MoSSe/MoSeS monolayers using density functional theory (DFT) calculations coupled with continuum elastica modeling. Exploring varying wrinkle sizes and compressive strain levels ($5\\%-20\\%$), we show that the global out-of-plane polarization follows a linear behavior when parameterized by the projected aspect ratio of the nanowrinkles. On this basis, we develop a physically grounded geometric model incorporating an effective 2D flexoelectric coefficient, which accurately predicts DFT polarizations without requiring higher-order nonlinear parameters. Atom- and orbital-resolved charge density analyses reveal the microscopic origin of this behavior: while the central Mo $4d$-orbital manifold acts as a robust, linear flexoelectric core, local curvature drives continuous, chemically asymmetric charge transfer between the S $3p$ and Se $4p$ sublayer manifolds. Our findings establish clear geometric design rules for harnessing Janus-based flexoelectricity for flexible nanoelectronics and optoelectronics.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.08295",
  "author_total": 4,
  "authors": [
    {
      "name": "Stefan Velja"
    },
    {
      "name": "Surender Kumar"
    },
    {
      "name": "Domenico Corona"
    },
    {
      "name": "Caterina Cocchi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/f8yr2mawffmmn.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.08295",
  "fulltext_url": null,
  "id": "f8yr2mawffmmn",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.08295",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "openalex",
      "2505|2D Materials and Applications"
    ]
  ],
  "openalex": "W7212061105",
  "pdf_url": "https://arxiv.org/pdf/2609.08295",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-08",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/f8yr2mawffmmn.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:49Z",
      "native_id": "2609.08295",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.08295"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Flexoelectric Polarization in Wrinkled Janus Transition-Metal Dichalcogenide Monolayers",
  "title_text": "Flexoelectric Polarization in Wrinkled Janus Transition-Metal Dichalcogenide Monolayers",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:49Z",
  "url": "https://research.draconitic.com/paper/f8yr2mawffmmn",
  "venue": "arXiv",
  "versions": []
}