{
  "abstract": "Electrical control of orbital magnetism is a central goal of orbitronics. While current-induced orbital polarization has recently been demonstrated in inversion-asymmetric systems, nonvolatile electrical control of an equilibrium orbital moment has remained elusive. Here, using x-ray absorption spectroscopy with \\textit{in situ} electric-field control of the FE polarization, we demonstrate non-volatile switching of the equilibrium orbital magnetization of the oxide q2DEGs formed at the LaAlO$_3$/EuTiO$_3$/Ca-STO (001) interface. X-ray linear dichroism reveals a reversible modulation, driven by the FE-polarization direction, of the Ti-3$d$ crystal-field splitting and orbital occupancy, establishing a ferroelectric-like metallic state. X-ray magnetic circular dichroism shows a polarization-controlled switching of the Eu$^{2+}$ orbital magnetic moment induced by the orbital magnetization of the q2DEG projected onto Eu-5$d$ states and detected at the Eu-$M_{4,5}$ edge through Eu-5$d$/Eu-4$f$ hybridization in the inversion-symmetry-broken interface. These results provide spectroscopic evidence of ferroelectric control of orbital magnetism in an oxide q2DEG.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.17073",
  "author_total": 13,
  "authors": [
    {
      "name": "Yu Chen"
    },
    {
      "name": "Martando Rath"
    },
    {
      "name": "Julien Brehin"
    },
    {
      "name": "Cinthia Piamonteze"
    },
    {
      "name": "Daniele Preziosi"
    },
    {
      "name": "Payal Wadhwa"
    },
    {
      "name": "Alessio Filippetti"
    },
    {
      "name": "Yuri Fukaya"
    },
    {
      "name": "Mario Cuoco"
    },
    {
      "name": "Filomena Forte"
    },
    {
      "name": "Daniela Stornaiuolo"
    },
    {
      "name": "Manuel Bibes"
    },
    {
      "name": "Marco Salluzzo"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9zhq5cvpy3sh5.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.17073",
  "fulltext_url": null,
  "id": "9zhq5cvpy3sh5",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.17073",
  "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|Electronic and Structural Properties of Oxides"
    ]
  ],
  "openalex": "W7221801222",
  "pdf_url": "https://arxiv.org/pdf/2610.17073",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9zhq5cvpy3sh5.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:31Z",
      "native_id": "2610.17073",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.17073"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Non-volatile Orbital magnetoelectric effect in a two-dimensional electron gas",
  "title_text": "Non-volatile Orbital magnetoelectric effect in a two-dimensional electron gas",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:31Z",
  "url": "https://research.draconitic.com/paper/9zhq5cvpy3sh5",
  "venue": "arXiv",
  "versions": []
}