{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"d7b81e1a3c2acb4fa162c6bc2100fb7b333495f90cad28d20ac2cb2dc1acd45b","created":"2026-10-03T07:17:51Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"21b4908a3cf52f0a2d7671682c56b850dd60fff3fa4a17042cf0032e2bfa4c63","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"cm.sit-anomalous-metal","field":"cm","n":"1","review_cite":"A. Kapitulnik, S. A. Kivelson and B. Spivak, Colloquium: Anomalous metals: Failed superconductors, Reviews of Modern Physics, 2019","review_link":"https://doi.org/10.1103/RevModPhys.91.011002","review_verified":"true","summary":"Thin superconducting films can be turned into insulators by disorder, a magnetic field or a gate voltage. In between, many films show an anomalous metal whose resistance stops falling on cooling and stays at a small finite value, which standard theory says should not happen at zero temperature.","title":"Superconductor-insulator transition and the anomalous metal","topic_ref":null,"why":"It is a direct test of how superconductivity, disorder and quantum fluctuations of the superconducting phase compete in two dimensions."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"4ea1b2157b1b787fb021cb15b1d29d6f209084de7dc217220a6bd4b6bab225a2","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"03e1505e7ff881fc5d4e378c8a140c18fdd9339b4797b01392c233768840d1ca","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"eX1nzRrgSKgkI3cIsQ_ke-f2qYlDJA9C3VZBOUfQ4c07rgUUK2dpRkHyx0npD3J82oSpRqV0dUW0V5jILEELDw"},"schema":"pubphys.envelope/1"},"record_hash":"4ea1b2157b1b787fb021cb15b1d29d6f209084de7dc217220a6bd4b6bab225a2","leaf_index":169}