{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"b692c3933e966235b75d51ff890746e0098659747aed6d455d9e3844462e1348","created":"2026-10-03T07:17:51Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"1cab310b01b09d7e7e8ba3fa64931eaa62146364adbce6beefe80838282488ba","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"cm.magic-angle-graphene","field":"cm","n":"1","review_cite":"E. Y. Andrei, A. H. MacDonald, Graphene bilayers with a twist, Nature Materials, 2020","review_link":"https://doi.org/10.1038/s41563-020-00840-0","review_verified":"true","summary":"Two or three graphene sheets stacked with a small twist (about 1.1 degrees for two sheets) form a long-wavelength interference pattern (a moire pattern) in which electrons move very slowly. Electron repulsion then dominates and produces insulators, magnetism and unusual metals whose nature depends on how many electrons a gate voltage adds.","title":"Correlated states of magic-angle twisted graphene","topic_ref":null,"why":"It is the cleanest tunable system of strongly repelling electrons in flat bands, so it tests theories also applied to cuprates and heavy-fermion metals."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"5046e808e6fff9aacad641f2a7f962b0712731127198d6ca10149f1ce640621c","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"b52250b2b77e34c80e16dd9a62b10fdbfc903e7acfe7534aa8e2d86e3a2fa0fc","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"8WYZxg9efk7ripWhGgFaNOUg2gyodsfYo6e7bmqsd2JCdSNlxKEpUEa36khV5q--P9ftglzX1p3ntmLZLv20CQ"},"schema":"pubphys.envelope/1"},"record_hash":"5046e808e6fff9aacad641f2a7f962b0712731127198d6ca10149f1ce640621c","leaf_index":151}