{
  "abstract": "A well known vibrational selection rule is invoked to determine the charge order (CO) pattern displayed by the most interesting members of the widely studied class of $κ$-BEDT-TTF salts and their molecular analogues. The selection rule indicates that an easily identifiable Raman band should be present if intra-dimer charge disproportionation occurs, constituting a sort of model independent ``litmus test''. The absence of such a band in the available Raman spectra of $κ$-BEDT-TTF salts exhibiting static of fluctuating CO, strongly suggests that the CO pattern involves inter-dimer CO, in contrast with the universally accepted intra-dimer disprortionation. This paper therefore poses a challenge for the theoretical modeling of the concerned salts: either the lack of the Raman band sensitive to intra-dimer CO pattern is explained, or the modeling of the multivariate, unique physical properties of these $κ$-phase salts (spin frustration, electronic ferroelectricity etc.) has to start from the perspective of a different ground state.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.00798",
  "author_total": 1,
  "authors": [
    {
      "name": "Alberto Girlando"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8jj5wyg5yhxtz.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.00798",
  "fulltext_url": null,
  "id": "8jj5wyg5yhxtz",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.00798",
  "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.str-el"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.00798",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8jj5wyg5yhxtz.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:59Z",
      "native_id": "2611.00798",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.00798"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Charge-Order pattern in $κ$-BEDT-TTF salts: A model independent, selection rule approach",
  "title_text": "Charge-Order pattern in κ-BEDT-TTF salts: A model independent, selection rule approach",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:18Z",
  "url": "https://research.draconitic.com/paper/8jj5wyg5yhxtz",
  "venue": "arXiv",
  "versions": []
}