{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"fb358074a4c9e8b63274f24a5c998df526df2b6bc93876d748e2016331f1fdbd","created":"2026-10-03T07:17:59Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"f650dddd29a5076ffdb0cb661abbb6fa96199248e04f0872a7cf7cc4f98d7723","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"cm.cuprates.pairing-mechanism","kind":"phenomenon","literature_status":"contested","n":"1","parents":[],"plain":"In a superconductor electrons form pairs (Cooper pairs) that move without resistance; in ordinary metals lattice vibrations supply the attraction, but in cuprates the source of the attraction is not agreed upon.","posed_since":"1987","precise":"Identify the dominant pairing interaction behind $d_{(x^{2}-y^{2})}$ superconductivity in hole-doped CuO2 planes (candidates: antiferromagnetic superexchange $J \\sim 0.13\\ \\mathrm{eV}$ and spin fluctuations, charge-transfer fluctuations, phonons, or a combination). An answer is a microscopic mechanism that predicts $T_c(p)$ and the gap magnitude across cuprate families within a factor of order one and passes material-specific tests (isotope effect, pressure dependence, family dependence of T_c,max).","problem_ref":null,"references":"","settled_by":"A controlled calculation from a materials-specific model that reproduces $T_{\\mathrm{c}}(p)$ in several families, together with spectroscopy showing that the identified boson spectrum accounts for the measured gap function.","status_note":"","title":"What interaction binds electrons into pairs in the cuprates","topic_ref":"33286b282c1fb96cb91bff4da60a136df7a46ad812b8b7d94aa4475e741e6e76"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"1f1cdf9130b4f02912f9ac1aadbd10c2f51d4d3acbacda170fcbc080c3235748","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"952aa08b483e0b90ce076cb7e9e933085a5704aa41d7c978d0ea61612de170f2","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"IUlYf5IeLs4sUw-IfSwocjwLlZtIRR7KhcHy_fh2saCES2QlMg1bj0Odec8BJmB55UaVzTAMWYPi616BFSxiAA"},"schema":"pubphys.envelope/1"},"record_hash":"1f1cdf9130b4f02912f9ac1aadbd10c2f51d4d3acbacda170fcbc080c3235748","leaf_index":935}