{"paper":{"title":"Enhanced $s^\\pm$-wave superconductivity in electron-doped La$_3$Ni$_2$O$_7$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Electron doping enhances s±-wave superconductivity across La3Ni2O7 systems, with the heterostructure achieving the highest transition temperature in the underdoped regime.","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Chao Deng, Liang Si, Mi Jiang, Wenfeng Wu, Xun Liu","submitted_at":"2026-05-17T16:04:38Z","abstract_excerpt":"In cuprates, electron doping yields a much lower superconducting $T_c$ than hole doping. For recently discovered nickelate superconductors, the analogous doping strategies become more challenging. Consequently, while hole-doped Ruddlesden-Popper (RP) nickelates have been extensively studied, electron-doped RP nickelates remain rarely explored both experimentally and theoretically. Here we fill this gap by systematically investigating the two-orbital bilayer model for three representative systems: bulk La$_3$Ni$_2$O$_7$ at ambient pressure and 15\\,GPa, and a heterostructure La$_3$Ni$_2$O$_7$:La"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"electron doping generically enhances s±-wave pairing superconductivity (SC) in all three cases, with the heterostructure showing the highest Tc in the underdoped regime.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The two-orbital bilayer model is assumed to capture the essential low-energy physics of electron-doped La3Ni2O7 systems (invoked when the authors state they systematically investigate this model for the three representative cases).","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Electron doping enhances s±-wave superconductivity in bulk and heterostructure La3Ni2O7 according to first-principles and dynamical cluster quantum Monte Carlo calculations.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Electron doping enhances s±-wave superconductivity across La3Ni2O7 systems, with the heterostructure achieving the highest transition temperature in the underdoped regime.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"f7f2de8bd2372d182321d1cef8c80620073aa9d8ef24a9c9440f19b0d6d6ad4f"},"source":{"id":"2605.17520","kind":"arxiv","version":1},"verdict":{"id":"2adae3ba-6bce-4639-ab44-4c4c1d63ebf0","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T22:17:24.399824Z","strongest_claim":"electron doping generically enhances s±-wave pairing superconductivity (SC) in all three cases, with the heterostructure showing the highest Tc in the underdoped regime.","one_line_summary":"Electron doping enhances s±-wave superconductivity in bulk and heterostructure La3Ni2O7 according to first-principles and dynamical cluster quantum Monte Carlo calculations.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The two-orbital bilayer model is assumed to capture the essential low-energy physics of electron-doped La3Ni2O7 systems (invoked when the authors state they systematically investigate this model for the three representative cases).","pith_extraction_headline":"Electron doping enhances s±-wave superconductivity across La3Ni2O7 systems, with the heterostructure achieving the highest transition temperature in the underdoped regime."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.17520/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"doi_title_agreement","ran_at":"2026-05-19T22:31:19.604635Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T22:31:07.212907Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"claim_evidence","ran_at":"2026-05-19T21:41:57.643729Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T21:33:23.625150Z","status":"skipped","version":"1.0.0","findings_count":0}],"snapshot_sha256":"808475e4b701f1d9766032b8a6093007b5d47172cfd97cfe93b6b26547e3b654"},"references":{"count":55,"sample":[{"doi":"","year":1986,"title":"J. G. Bednorz and K. A. M¨ uller, Possible high T c superconductivity in the Ba-La-Cu-O system, Zeitschrift f¨ ur Physik B Condensed Matter64, 189 (1986)","work_id":"82ddcc70-9752-4e98-85c9-858d42d1d02d","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2000,"title":"C. C. Tsuei and J. R. Kirtley, Pairing symmetry in cuprate superconductors, Rev. Mod. Phys.72, 969 (2000)","work_id":"d84ed8c2-eff2-46a0-a97a-8fba432f1fbc","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2003,"title":"A. Damascelli, Z. Hussain, and Z.-X. Shen, Angle- resolved photoemission studies of the cuprate superconductors, Rev. Mod. Phys.75, 473 (2003)","work_id":"aefab850-b6a3-49a6-b7a2-0ac0f5012cdc","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2026,"title":"L. Deng, T. Habamahoro, A. Safezoddeh, B. Karki, S. Kazibwe, D. J. Schulze, Z. Wu, M. Julian, R. P. Prasankumar, H. Zhou, J. S. Smith, P. R. Hosur, and C.-W. Chu, Ambient-pressure 151 K superconductiv","work_id":"97839297-d3b0-45a3-a7b9-86829554dbc2","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1996,"title":"J. M, G. A Conde, G. C Falcony, and S. V, Tl-based superconductors for high-current, high-field applications, Superconductor Science and Technology9, 427 (1996)","work_id":"9f8d0f27-34c4-4cd6-96c9-4ff62ebc0ee0","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":55,"snapshot_sha256":"88553742a5a8f5c5741b7ddc8f60bdfc63431d7fe2bf91e42bfa5996f113b16e","internal_anchors":0},"formal_canon":{"evidence_count":1,"snapshot_sha256":"c4935babc39046c706129a676534dc80a41e497615d95713be4082e6ca9caf5b"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}