{
  "abstract": "Sliding ferroelectricity in parallel-stacked two-dimensional van der Waals materials enables a broad range of novel device concepts, but exploiting it requires reliable, non-destructive assignment of the underlying stacking order and polarization state. Here, we combine Kelvin-probe force microscopy (KPFM) with low-frequency Raman spectroscopy to probe the polarization domains and stacking configurations of a exfoliated trilayer 3R-MoS$_{2}$ flake on a hBN substrate. We find that ABA and BAB - both stackings with zero net polarization - are indistinguishable in KPFM, yet show drastically different low-frequency shear modes. This observation is reproduced across multiple flakes and is corroborated by low-temperature photoluminescence. Notably, the standard bond-polarizability model does not account for the difference in shear-mode activity between the ABA and BAB configurations, indicating that the interlayer Raman response of these stackings is governed by physics beyond a simple polarizability picture. Our results show that none of the here-used individual techniques alone is sufficient to assign sliding-ferroelectric stacking order and motivate a combined spectroscopic-scanning-probe approach.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.11988",
  "author_total": 10,
  "authors": [
    {
      "name": "Johannes Schwandt-Krause"
    },
    {
      "name": "Jan-Niklas Heidkamp"
    },
    {
      "name": "Mohammed El Amine Miloudi"
    },
    {
      "name": "Swarup Deb"
    },
    {
      "name": "Elisabeth Grune"
    },
    {
      "name": "Kenji Watanabe"
    },
    {
      "name": "Takashi Taniguchi"
    },
    {
      "name": "Rico Schwartz"
    },
    {
      "name": "Oliver Kühn"
    },
    {
      "name": "Tobias Korn"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1hcpe13ebahjh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.11988",
  "fulltext_url": null,
  "id": "1hcpe13ebahjh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.11988",
  "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.mes-hall"
    ],
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "openalex",
      "2505|2D Materials and Applications"
    ]
  ],
  "openalex": "W7202390620",
  "pdf_url": "https://arxiv.org/pdf/2608.11988",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/1hcpe13ebahjh.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:18Z",
      "native_id": "2608.11988",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.11988"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Mismatch between Raman shear modes and ferroelectric polarization in 3R-MoS$_{2}$",
  "title_text": "Mismatch between Raman shear modes and ferroelectric polarization in 3R-MoS_2",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:18Z",
  "url": "https://research.draconitic.com/paper/1hcpe13ebahjh",
  "venue": "arXiv",
  "versions": []
}