{
  "abstract": "Electron doped rhombohedral multilayer graphene at high displacement field features an exceptionally flat band minimum with near-ideal quantum geometry. Experiments in this regime observe the formation of a 'quarter metal,' in which the electron liquid condenses into a single spin- and valley flavor. Remarkably, recent experiments have found a zero resistance state in the same region of the density- and displacement-field-tuned parameter space, attributed to the formation of a chiral superconductor from an orbitally ferromagnetic normal state. Here, we use nanoSQUID-on-tip magnetometry to map the orbital magnetization of electron-doped rhombohedral graphene devices ranging in thickness between 3 and 15 layers. Magnetization within the quarter metal phases peaks at finite density, consistent with concentration of the Berry curvature in a finite-momentum 'ring of fire'. Correlating transport and local magnetometry data in a superconducting tetralayer sample reveals a finite orbital ferromagnetic moment, providing direct evidence of valley polarization in the superconducting ground state. We further show that widely observed stochastic switching of the resistivity in both metallic and superconducting regimes arises from a density-tuned sign change in the valley-resolved total magnetic moment. This leads to the formation of metastable magnetic domains under typical gate control sequences and can also be harnessed for electric-field controlled switching of the magnetization across the entire device. Finally, high resolution measurements of the magnetization across a superconducting transition allow us to put an upper bound on the 'condensation magnetization' of 0.1 Bohr magneton per carrier, placing a strong quantitative restriction on theoretical models for ferromagnetic superconductivity.",
  "abstract_shown": true,
  "affiliations": [
    "Physics Department , University of California , Santa Barbara 93106",
    "Department of Physics , Stanford University , Stanford , CA 94305",
    "Stanford Institute for Materials and Energy Sciences , SLAC National Accelerator Laboratory , Menlo Park , CA 94025",
    "Department of Materials Science and Engineering , Stanford University , Stanford , CA 94305",
    "Departments of Physics and Electrical Engineering , University of Colorado , Denver , Colorado 80204 , USA",
    "Research Center for Materials Nanoarchitectonics , National Institute for Materials Science , 1-1 Namiki , Tsukuba 305-0044 , Japan",
    "Research Center for Electronic and Optical Materials , National Institute for Materials Science , 1-1 Namiki , Tsukuba 305-0044 , Japan",
    "Département de physique , Institut quantique & RQMP , Université de Sherbrooke , Sherbrooke , Québec J1K 2R1 , Canada"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 27,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Owen Sheekey"
    },
    {
      "affs": [
        0
      ],
      "name": "Trevor Arp",
      "orcid": "0000-0002-0754-9579"
    },
    {
      "affs": [
        0
      ],
      "name": "Benjamin A. Foutty",
      "orcid": "0009-0000-5158-6097"
    },
    {
      "affs": [
        0
      ],
      "name": "Ruoxi Zhang"
    },
    {
      "affs": [
        1
      ],
      "name": "Tixuan Tan",
      "orcid": "0000-0002-1111-3401"
    },
    {
      "affs": [
        0
      ],
      "name": "Ludwig Holleis",
      "orcid": "0000-0001-9718-2477"
    },
    {
      "affs": [
        0
      ],
      "name": "Yi Guo"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Sandesh S. Kalantre",
      "orcid": "0000-0002-3086-3769"
    },
    {
      "affs": [
        0
      ],
      "name": "Canxun Zhang",
      "orcid": "0000-0001-6608-4743"
    },
    {
      "affs": [
        0
      ],
      "name": "Mark Zakharyan",
      "orcid": "0009-0008-8125-3929"
    },
    {
      "affs": [
        0
      ],
      "name": "David Gong"
    },
    {
      "affs": [
        0
      ],
      "name": "Aidan Keough"
    },
    {
      "affs": [
        0
      ],
      "name": "Youngjoon Choi"
    },
    {
      "affs": [
        0
      ],
      "name": "Ysun Choi",
      "orcid": "0000-0002-5751-9124"
    },
    {
      "affs": [
        0
      ],
      "name": "Siyuan Xu"
    },
    {
      "affs": [
        0
      ],
      "name": "Tian Xie"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Ben Hodder Alexander"
    },
    {
      "affs": [
        3,
        2
      ],
      "name": "Marisa Hocking"
    },
    {
      "affs": [
        2
      ],
      "name": "Qingrui Cao",
      "orcid": "0000-0002-7838-1435"
    },
    {
      "affs": [
        4
      ],
      "name": "M. E. Huber",
      "orcid": "0000-0002-7638-902X"
    },
    {
      "affs": [
        5
      ],
      "name": "Takashi Taniguchi",
      "orcid": "0000-0002-1467-3105"
    },
    {
      "affs": [
        6
      ],
      "name": "Kenji Watanabe",
      "orcid": "0000-0003-3701-8119"
    },
    {
      "affs": [
        0
      ],
      "name": "Chenhao Jin",
      "orcid": "0000-0002-5965-7475"
    },
    {
      "affs": [
        7
      ],
      "name": "Étienne Lantagne-Hurtubise",
      "orcid": "0000-0003-0417-6452"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Aaron L. Sharpe",
      "orcid": "0000-0002-4260-8546"
    },
    {
      "affs": [
        1
      ],
      "name": "Trithep Devakul",
      "orcid": "0000-0002-4129-897X"
    },
    {
      "affs": [
        0
      ],
      "name": "Andrea F. Young",
      "orcid": "0000-0001-5954-8028"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7hc8jvrjvc0da.bib",
  "cited_by": 18,
  "doi": "10.48550/arxiv.2605.30316",
  "fulltext_url": null,
  "id": "7hc8jvrjvc0da",
  "issns": [
    "2331-8422"
  ],
  "landing_url": "https://arxiv.org/abs/2605.30316",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2505|Graphene research and applications"
    ]
  ],
  "openalex": "W7162750366",
  "pdf_url": "https://arxiv.org/pdf/2605.30316",
  "pmcid": null,
  "pmid": null,
  "published": "2026-05-28",
  "publisher": "Cornell University",
  "ris": "https://research.draconitic.com/paper/7hc8jvrjvc0da.ris",
  "sources": [
    {
      "first_seen": "2026-11-07T13:21:06Z",
      "native_id": "W7162750366",
      "source": "openalex",
      "url": "https://arxiv.org/abs/2605.30316"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2505|Graphene research and applications",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Visualizing orbital magnetism in electron doped rhombohedral multilayer graphene",
  "title_text": "Visualizing orbital magnetism in electron doped rhombohedral multilayer graphene",
  "type": "preprint",
  "updated_at": "2026-11-09T13:21:22Z",
  "url": "https://research.draconitic.com/paper/7hc8jvrjvc0da",
  "venue": "arXiv (Cornell University)",
  "versions": []
}