{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"e2053011ba427c1640a3860ff32dc0f8fafdcc1cd478d67d0166c59777e0c965","created":"2026-10-03T07:17:51Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"dcfc4f3cccdab2c2d302c7dbbe059c37bc85ef8207b10153b584219ddbd334de","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"cm.rhombohedral-graphene","field":"cm","n":"1","review_cite":"Z. Lu et al., Fractional quantum anomalous Hall effect in multilayer graphene, Nature, 2024","review_link":"https://doi.org/10.1038/s41586-023-07010-7","review_verified":"true","summary":"Four to seven graphene layers stacked in a staircase (rhombohedral) order have very flat electron bands at low density. With or without a moire pattern from a boron nitride substrate they show zero-field fractional Hall states and superconductivity that appears to break time-reversal symmetry.","title":"Rhombohedral multilayer graphene: anomalous Hall states and superconductivity","topic_ref":null,"why":"It is a pure-carbon platform where fractional charge, magnetism and possibly chiral superconductivity occur in one tunable device."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"dbb59679d7d08ca030c73977f0e702fbc219a01510b953511f1e2bffa01dfa2f","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"884e5826a51e0ab7222cc0f7c8014f4fd352a48ca5b5a1cefaf0b377f3b27737","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"tRq2nJ59kqn6qAyLTBCbmxDzhz0r4c05ahth-Qtze6xT3X8sErteJxpdclc6Xq3uGec81gsQWDqWU0yUwyC2Dw"},"schema":"pubphys.envelope/1"},"record_hash":"dbb59679d7d08ca030c73977f0e702fbc219a01510b953511f1e2bffa01dfa2f","leaf_index":166}