{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"764f9e3180b3065789566ec122f7d2e7c3f4f0d17f66fbc51dd9dfdd5c192d10","created":"2026-10-03T07:17:50Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"5807f787598b0d999b2f4f35917a53624b33e759987469c547e901d4d2a13367","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"cm.dilute-superconductivity","field":"cm","n":"1","review_cite":"M. N. Gastiasoro, J. Ruhman, R. M. Fernandes, Superconductivity in dilute SrTiO3: A review, Annals of Physics, 2020","review_link":"https://doi.org/10.1016/j.aop.2020.168107","review_verified":"true","summary":"Most superconductors are metals crowded with electrons, but some, like doped strontium titanate, superconduct with a thousand times fewer carriers. In these materials the usual theory, which assumes electrons move much faster than the vibrating ions that pair them, breaks down.","title":"Superconductivity at very low carrier density","topic_ref":null,"why":"Pairing without the usual separation of electronic and lattice energy scales tests the foundations of the theory of superconductivity."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"1691597bf36b5c4ae6e8e76cab311c80818c254bf6df91fc1604cdef43bb8e76","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"1d2c7f6390a4e7aa2f32777185b70bc200510292cd752af2dacfeaff6205a53e","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"08EPFi8TUY9XBJkLw-9Lum8yocDDBzKaT105uleN31-VlLePc1z7gumYeEtDT1DtcQYanuTgHkoTDyGUkLDCAQ"},"schema":"pubphys.envelope/1"},"record_hash":"1691597bf36b5c4ae6e8e76cab311c80818c254bf6df91fc1604cdef43bb8e76","leaf_index":124}