{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"96cb33b3e78a94585bb28833fd3e6ad0f8c660848c14b15de0193eef122b5583","created":"2026-10-03T07:17:51Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"ffb0e672113c02edfcc61306503893a4fca0b43dc90873c64c597ce92ef4d130","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"cm.iron-based","field":"cm","n":"1","review_cite":"Q. Si, R. Yu, E. Abrahams, High-temperature superconductivity in iron pnictides and chalcogenides, Nature Reviews Materials, 2016","review_link":"https://doi.org/10.1038/natrevmats.2016.17","review_verified":"true","summary":"Iron arsenides and selenides superconduct up to about 55 K in bulk, and many first pass through a nematic transition, where electrons pick out one direction in the crystal before the lattice distorts. Several electron orbitals are active, which allows pairing patterns not available in cuprates.","title":"Iron-based superconductors: nematicity and pairing symmetry","topic_ref":null,"why":"They are a second family of high-temperature superconductors and test which features of the cuprates matter for pairing."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"71fc7a5f7f45e0e897c1da37458bfa12479b8a0797fe32805a586a3c8fc44007","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"4cbe75473010609aab29421680f019a586da1f34394364a20c45d1547b96875d","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"EWJtS1MkXEfhuK1sT_m8Dbw_1lvamMrEGNgfz7PEpSMQqzAmJjl0UQTXPqnJ6Jw5KweWO-jNft_gr3nl6dfVCw"},"schema":"pubphys.envelope/1"},"record_hash":"71fc7a5f7f45e0e897c1da37458bfa12479b8a0797fe32805a586a3c8fc44007","leaf_index":146}