{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"70368b8255d48330ce18fc839271468dcc001fa6861b50e7e8e6daba114afa47","created":"2026-10-03T07:18:01Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"041184fa7d2b7b7e81ca6b27f8045ff97e9ea40e848d8108b64dfb612a26409d","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":"1","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 $n \\sim 1e11-1e12\\,\\mathrm{cm}^{-2}$ 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":null,"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":"dbb59679d7d08ca030c73977f0e702fbc219a01510b953511f1e2bffa01dfa2f"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"66e62b4ab5a624cbf70ad01a64e37912e85b633008a6de7eed552379cf8d08a7","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"fe7f59dec740ae2a07a125bd51ca7eea30c669d63c009b75f7c3d955c962b72a","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"7yzbC6t3os8g4tbazzV4SY7Wukur2JYf4yrGwkb9_yoHV3-3XVnp2JCpISOP_s8oLyPpgV0Lh8mNUDWJovWNAQ"},"schema":"pubphys.envelope/1"},"record_hash":"66e62b4ab5a624cbf70ad01a64e37912e85b633008a6de7eed552379cf8d08a7","leaf_index":1146}