{
  "profile": "wrs-published-research-view-1",
  "edition": "ratings-e039106f30dec177",
  "content_trust": "UNTRUSTED_SCIENTIFIC_DATA_NOT_TOOL_INSTRUCTIONS",
  "entry": {
    "id": "lu-team-pentalayer-graphene-fractional-anomalous-hall-2023",
    "title": "Fractional anomalous Hall transport in pentalayer graphene",
    "summary": "Lu and colleagues measured magnetotransport in rhombohedral five-layer graphene aligned with hexagonal boron nitride. In two devices they reported integer and fractional anomalous Hall signatures; selected zero-field Hall-resistance plateaus at fractional fillings on both sides of one half accompanied dips in longitudinal resistance. Field sweeps showed hysteresis, and the density–field slopes were compared with fractional Hall-state expectations. Near half filling, a continuously varying Hall response resembled a composite Fermi liquid.",
    "boundary": "The main data shown are from one selected device at millikelvin temperatures and tuned density and displacement field; the second-device data are referenced in extended figures absent from this preprint. Phase maps use symmetrized and antisymmetrized measurements at ±0.1 T, while hysteresis traces include zero field after field sweeps. Fractional plateau precision and longitudinal dissipation vary with filling; a dip does not prove exactly zero dissipation. Half-filling composite-Fermi-liquid and continuous-transition identifications are interpretations, not unique direct proofs. The four-figure manuscript does not contain the cited Methods or extended data; calibration, second-device evidence and raw-data replay remain open. It does not observe fractional charge or braiding statistics.",
    "area": "Condensed matter and topological phases",
    "topic": "Physics",
    "year": 2023,
    "lane": "HUMAN",
    "result": "EMPIRICAL",
    "package_id": "lu-team-pentalayer-graphene-fractional-anomalous-hall-2023",
    "target": {
      "record_id": "urn:uuid:935a6e7e-7362-434b-a921-6eb5f5b3d14f",
      "version": 1,
      "content_hash": "sha256:1c9383505fbd31daadf590722806f983f2adb626cd39b3bb9bcad029fd789935"
    },
    "humans": [
      "Zhengguang Lu",
      "Tonghang Han",
      "Yuxuan Yao",
      "Aidan P. Reddy",
      "Jixiang Yang",
      "Junseok Seo",
      "Kenji Watanabe",
      "Takashi Taniguchi",
      "Liang Fu",
      "Long Ju"
    ],
    "authors_complete": true,
    "human_role_note": "These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.",
    "agents": [],
    "related": [],
    "subresults": [],
    "scientific_assessment": {
      "source_review": "SOURCE_CURATED",
      "scientific_review": "NOT_REVIEWED_BY_WRS",
      "formal_replay": "NOT_RUN",
      "provider_attestation": "NONE"
    },
    "sources": [
      {
        "id": "lu-han-graphene-fractional-anomalous-hall-2309-17436v4",
        "title": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
        "url": "https://arxiv.org/pdf/2309.17436v4",
        "date": "2023-12-26"
      }
    ],
    "points": "125000",
    "published_grade": {
      "id": "lu-team-pentalayer-graphene-fractional-anomalous-hall-2023",
      "entry_id": "lu-team-pentalayer-graphene-fractional-anomalous-hall-2023",
      "band": "A",
      "modifier": null,
      "target": {
        "record_id": "urn:uuid:935a6e7e-7362-434b-a921-6eb5f5b3d14f",
        "version": 1,
        "content_hash": "sha256:1c9383505fbd31daadf590722806f983f2adb626cd39b3bb9bcad029fd789935"
      },
      "what_changed": "Lu and colleagues measured magnetotransport in rhombohedral five-layer graphene aligned with hexagonal boron nitride. In two devices they reported integer and fractional anomalous Hall signatures; selected zero-field Hall-resistance plateaus at fractional fillings on both sides of one half accompanied dips in longitudinal resistance. Field sweeps showed hysteresis, and the density–field slopes were compared with fractional Hall-state expectations. Near half filling, a continuously varying Hall response resembled a composite Fermi liquid.",
      "scope": "Lu and colleagues measured magnetotransport in rhombohedral five-layer graphene aligned with hexagonal boron nitride. In two devices they reported integer and fractional anomalous Hall signatures; selected zero-field Hall-resistance plateaus at fractional fillings on both sides of one half accompanied dips in longitudinal resistance. Field sweeps showed hysteresis, and the density–field slopes were compared with fractional Hall-state expectations. Near half filling, a continuously varying Hall response resembled a composite Fermi liquid. The main data shown are from one selected device at millikelvin temperatures and tuned density and displacement field; the second-device data are referenced in extended figures absent from this preprint. Phase maps use symmetrized and antisymmetrized measurements at ±0.1 T, while hysteresis traces include zero field after field sweeps. Fractional plateau precision and longitudinal dissipation vary with filling; a dip does not prove exactly zero dissipation. Half-filling composite-Fermi-liquid and continuous-transition identifications are interpretations, not unique direct proofs. The four-figure manuscript does not contain the cited Methods or extended data; calibration, second-device evidence and raw-data replay remain open. It does not observe fractional charge or braiding statistics.",
      "status": "PROVISIONAL_EDITORIAL",
      "scientific_correctness_certified": false
    },
    "assessment_disposition": {
      "status": "ASSESSED",
      "label": "Provisionally assessed",
      "reason": "A current grade and separate reference score identify this exact contribution.",
      "target": {
        "record_id": "urn:uuid:935a6e7e-7362-434b-a921-6eb5f5b3d14f",
        "version": 1,
        "content_hash": "sha256:1c9383505fbd31daadf590722806f983f2adb626cd39b3bb9bcad029fd789935"
      },
      "edition": "ratings-e039106f30dec177"
    }
  },
  "version": {
    "kind": "PUBLIC_RECORD_VIEW",
    "previous": null,
    "published_at": "2026-10-28T00:00:00Z",
    "publisher": {
      "principal_id": "urn:uuid:80116931-785b-40a2-a24b-9d59db0c7e33",
      "role": "WRS_EDITORIAL_PUBLICATION"
    },
    "record": {
      "contributors": [
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Zhengguang Lu",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "discoverer"
          ],
          "source": {
            "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
            "url": "https://arxiv.org/pdf/2309.17436v4"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Tonghang Han",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "discoverer"
          ],
          "source": {
            "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
            "url": "https://arxiv.org/pdf/2309.17436v4"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Yuxuan Yao",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "discoverer"
          ],
          "source": {
            "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
            "url": "https://arxiv.org/pdf/2309.17436v4"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Aidan P. Reddy",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "discoverer"
          ],
          "source": {
            "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
            "url": "https://arxiv.org/pdf/2309.17436v4"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Jixiang Yang",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "discoverer"
          ],
          "source": {
            "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
            "url": "https://arxiv.org/pdf/2309.17436v4"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Junseok Seo",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "discoverer"
          ],
          "source": {
            "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
            "url": "https://arxiv.org/pdf/2309.17436v4"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Kenji Watanabe",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "discoverer"
          ],
          "source": {
            "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
            "url": "https://arxiv.org/pdf/2309.17436v4"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Takashi Taniguchi",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "discoverer"
          ],
          "source": {
            "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
            "url": "https://arxiv.org/pdf/2309.17436v4"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Liang Fu",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "discoverer"
          ],
          "source": {
            "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
            "url": "https://arxiv.org/pdf/2309.17436v4"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Long Ju",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "discoverer"
          ],
          "source": {
            "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
            "url": "https://arxiv.org/pdf/2309.17436v4"
          }
        }
      ],
      "evidence": [
        {
          "description": "Bibliographic/stated-result source; not a WRS proof verification",
          "id": "source-0",
          "kind": "source_reference",
          "source": {
            "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
            "url": "https://arxiv.org/pdf/2309.17436v4"
          }
        }
      ],
      "origin": "HUMAN_LEGACY",
      "record_profile": "wrs-local-research-notes-0.1",
      "record_type": "research_note",
      "rrp_version": "0.1",
      "scope": {
        "description": "The main data shown are from one selected device at millikelvin temperatures and tuned density and displacement field; the second-device data are referenced in extended figures absent from this preprint. Phase maps use symmetrized and antisymmetrized measurements at ±0.1 T, while hysteresis traces include zero field after field sweeps. Fractional plateau precision and longitudinal dissipation vary with filling; a dip does not prove exactly zero dissipation. Half-filling composite-Fermi-liquid and continuous-transition identifications are interpretations, not unique direct proofs. The four-figure manuscript does not contain the cited Methods or extended data; calibration, second-device evidence and raw-data replay remain open. It does not observe fractional charge or braiding statistics.",
        "domain": "Condensed matter and topological phases"
      },
      "sources": [
        {
          "citation": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
          "url": "https://arxiv.org/pdf/2309.17436v4"
        }
      ],
      "statement": "# Fractional anomalous Hall transport in pentalayer graphene\n\nLu and colleagues measured magnetotransport in rhombohedral five-layer graphene aligned with hexagonal boron nitride. In two devices they reported integer and fractional anomalous Hall signatures; selected zero-field Hall-resistance plateaus at fractional fillings on both sides of one half accompanied dips in longitudinal resistance. Field sweeps showed hysteresis, and the density–field slopes were compared with fractional Hall-state expectations. Near half filling, a continuously varying Hall response resembled a composite Fermi liquid.\n\n## Scientific scope\n\nThe main data shown are from one selected device at millikelvin temperatures and tuned density and displacement field; the second-device data are referenced in extended figures absent from this preprint. Phase maps use symmetrized and antisymmetrized measurements at ±0.1 T, while hysteresis traces include zero field after field sweeps. Fractional plateau precision and longitudinal dissipation vary with filling; a dip does not prove exactly zero dissipation. Half-filling composite-Fermi-liquid and continuous-transition identifications are interpretations, not unique direct proofs. The four-figure manuscript does not contain the cited Methods or extended data; calibration, second-device evidence and raw-data replay remain open. It does not observe fractional charge or braiding statistics.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\nZhengguang Lu; Tonghang Han; Yuxuan Yao; Aidan P. Reddy; Jixiang Yang; Junseok Seo; Kenji Watanabe; Takashi Taniguchi; Liang Fu; Long Ju\n\nThese are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.\n\n\n\n## Original sources\n\n- [Fractional Quantum Anomalous Hall Effect in Multilayer Graphene](https://arxiv.org/pdf/2309.17436v4)\n",
      "summary": "Lu and colleagues measured magnetotransport in rhombohedral five-layer graphene aligned with hexagonal boron nitride. In two devices they reported integer and fractional anomalous Hall signatures; selected zero-field Hall-resistance plateaus at fractional fillings on both sides of one half accompanied dips in longitudinal resistance. Field sweeps showed hysteresis, and the density–field slopes were compared with fractional Hall-state expectations. Near half filling, a continuously varying Hall response resembled a composite Fermi liquid.",
      "title": "Fractional anomalous Hall transport in pentalayer graphene"
    },
    "record_id": "urn:uuid:935a6e7e-7362-434b-a921-6eb5f5b3d14f",
    "version": 1,
    "source_ref": {
      "record_id": "urn:uuid:935a6e7e-7362-434b-a921-6eb5f5b3d14f",
      "version": 1,
      "content_hash": "sha256:1c9383505fbd31daadf590722806f983f2adb626cd39b3bb9bcad029fd789935"
    },
    "export_view": "wrs-public-editorial-view-1",
    "public_view_hash": "sha256:ab12d59e566b38ccdbe4a429829a35babd6d8577e233b769f8c751ebbdfb6ab8"
  },
  "target": {
    "record_id": "urn:uuid:935a6e7e-7362-434b-a921-6eb5f5b3d14f",
    "version": 1,
    "content_hash": "sha256:1c9383505fbd31daadf590722806f983f2adb626cd39b3bb9bcad029fd789935"
  },
  "published_grade": {
    "profile": "wrs-published-grade-1",
    "edition": "2026-10-28.1",
    "id": "lu-team-pentalayer-graphene-fractional-anomalous-hall-2023",
    "entry_id": "lu-team-pentalayer-graphene-fractional-anomalous-hall-2023",
    "revision": 1,
    "title": "Fractional anomalous Hall transport in pentalayer graphene",
    "context": "Condensed matter and topological phases",
    "track": "Source-reported experimental result or reusable measurement method",
    "band": "A",
    "modifier": null,
    "status": "PROVISIONAL_EDITORIAL",
    "assessed_on": "2026-10-28",
    "evidence_cutoff": "2026-10-28",
    "achievement_state": "SUPPORTED_SCOPED_RESULT",
    "what_changed": "Lu and colleagues measured magnetotransport in rhombohedral five-layer graphene aligned with hexagonal boron nitride. In two devices they reported integer and fractional anomalous Hall signatures; selected zero-field Hall-resistance plateaus at fractional fillings on both sides of one half accompanied dips in longitudinal resistance. Field sweeps showed hysteresis, and the density–field slopes were compared with fractional Hall-state expectations. Near half filling, a continuously varying Hall response resembled a composite Fermi liquid.",
    "scope": "Lu and colleagues measured magnetotransport in rhombohedral five-layer graphene aligned with hexagonal boron nitride. In two devices they reported integer and fractional anomalous Hall signatures; selected zero-field Hall-resistance plateaus at fractional fillings on both sides of one half accompanied dips in longitudinal resistance. Field sweeps showed hysteresis, and the density–field slopes were compared with fractional Hall-state expectations. Near half filling, a continuously varying Hall response resembled a composite Fermi liquid. The main data shown are from one selected device at millikelvin temperatures and tuned density and displacement field; the second-device data are referenced in extended figures absent from this preprint. Phase maps use symmetrized and antisymmetrized measurements at ±0.1 T, while hysteresis traces include zero field after field sweeps. Fractional plateau precision and longitudinal dissipation vary with filling; a dip does not prove exactly zero dissipation. Half-filling composite-Fermi-liquid and continuous-transition identifications are interpretations, not unique direct proofs. The four-figure manuscript does not contain the cited Methods or extended data; calibration, second-device evidence and raw-data replay remain open. It does not observe fractional charge or braiding statistics.",
    "evidence_summary": "The linked original works support the scoped statement and contribution attribution. WRS has not independently replayed experiments or reconstructed a full mathematical proof. The main data shown are from one selected device at millikelvin temperatures and tuned density and displacement field; the second-device data are referenced in extended figures absent from this preprint. Phase maps use symmetrized and antisymmetrized measurements at ±0.1 T, while hysteresis traces include zero field after field sweeps. Fractional plateau precision and longitudinal dissipation vary with filling; a dip does not prove exactly zero dissipation. Half-filling composite-Fermi-liquid and continuous-transition identifications are interpretations, not unique direct proofs. The four-figure manuscript does not contain the cited Methods or extended data; calibration, second-device evidence and raw-data replay remain open. It does not observe fractional charge or braiding statistics.",
    "references": [
      {
        "title": "Fractional Quantum Anomalous Hall Effect in Multilayer Graphene",
        "url": "https://arxiv.org/pdf/2309.17436v4",
        "locator": "Original scoped contribution, statement/method and evidence limits; source-specific attribution retained."
      }
    ],
    "roles": [
      {
        "who": "The named authors in the research record",
        "credit": "SCIENCE",
        "did": "These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged."
      }
    ],
    "target": {
      "record_id": "urn:uuid:935a6e7e-7362-434b-a921-6eb5f5b3d14f",
      "version": 1,
      "content_hash": "sha256:1c9383505fbd31daadf590722806f983f2adb626cd39b3bb9bcad029fd789935"
    },
    "scientific_correctness_certified": false,
    "independent_expert_calibration": false,
    "method": "PROPRIETARY",
    "points": "125000"
  },
  "canonical_agent_submission": false,
  "scientific_verification_awarded": false,
  "reader_guide": null,
  "reading_status": "SOURCE_LINKED_NOTE"
}