{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"877a6c7493d6cd91bdbc9af0d8e67e265ac2c958380d76911c0900a04bbceff6","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["66e62b4ab5a624cbf70ad01a64e37912e85b633008a6de7eed552379cf8d08a7","ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b"],"salt":"4d66f8bf0337cd565b9d3bfaf75f73f1aa68375b36438713ef15c462d823315a","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"cm.rhombohedral-graphene.repulsive-pairing","kind":"phenomenon","literature_status":"open","n":"2","parents":[],"plain":"In a band where all electrons share one spin and one valley (one of graphene's two momentum regions for low-energy electrons), pairs must have odd symmetry, and whether the electrons' own repulsion can produce such pairing at the observed temperature is unsettled.","posed_since":"2025","precise":"For a spin- and valley-polarized rhombohedral graphene band at $n \\sim 10^{11}-10^{12}\\,\\mathrm{cm}^{-2}$ with gate-screened Coulomb interaction, compute the odd-parity pairing $T_c$ from Kohn-Luttinger, Berry-curvature-enhanced or order-parameter-fluctuation mechanisms and compare with phonon-mediated odd-parity pairing. An answer is a calculation reproducing $T_c \\sim 0.1-0.3\\,\\mathrm{K}$ and its density and displacement-field window.","problem_ref":"66e62b4ab5a624cbf70ad01a64e37912e85b633008a6de7eed552379cf8d08a7","references":"","settled_by":"A quantitative calculation matching measured $T_{c}(n, D)$, tested by the predicted dependence on gate-to-sample distance in devices with different gate spacings.","status_note":"","title":"Superconductivity from repulsion in a single-flavor graphene band","topic_ref":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"c78fa0bfbda30d5d59865b4285fca2f6f429f393a7d91ffccd306720e61052bd","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"9ca8bd7f3ffb255e189032b87f71b103078a2169dded42caa9b5e972c5059bce","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"UhrMSIt6MLIVHJoYjCIAA_tmi56J3HO_X5rks0fpo78Vqi351oZMCoMx-QnhLBtSZ4ikSrBDFRoFTq8jgZY3BA"},"schema":"pubphys.envelope/1"},"record_hash":"c78fa0bfbda30d5d59865b4285fca2f6f429f393a7d91ffccd306720e61052bd","leaf_index":3014}