{
  "abstract": "Orbitronics seeks to convert orbital angular momentum (OAM) into spin, but its microscopic dynamics is not understood. Here I show that, at moderate spin-orbit coupling, an electrically induced spin density contains a direct term and an \\textit{orbital-geometric spin response} (OGSR) due to inter-band coherence of the spinless parent Hamiltonian---related to OAM but not descended from it. In massive Dirac fermions the OGSR survives as the net OAM vanishes, and generates \\textit{counterflow}, opposing the direct response. These results provide guidelines for optimising orbitronic systems.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.12093",
  "author_total": 1,
  "authors": [
    {
      "name": "Dimitrie Culcer"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6mwbsvr4g0s87.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.12093",
  "fulltext_url": null,
  "id": "6mwbsvr4g0s87",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.12093",
  "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"
    ],
    [
      "openalex",
      "3107|Magnetic properties of thin films"
    ]
  ],
  "openalex": "W7212677592",
  "pdf_url": "https://arxiv.org/pdf/2609.12093",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-10",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6mwbsvr4g0s87.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:07Z",
      "native_id": "2609.12093",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.12093"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Orbital-geometric spin response: inter-band coherence versus orbital-to-spin conversion",
  "title_text": "Orbital-geometric spin response: inter-band coherence versus orbital-to-spin conversion",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:07Z",
  "url": "https://research.draconitic.com/paper/6mwbsvr4g0s87",
  "venue": "arXiv",
  "versions": []
}