{"paper":{"title":"Incommensurate Antiferromagnetic Order in the Fe-substituted Bi-2201 Cuprate in the Heavily Overdoped Regime","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Iron substitution induces incommensurate antiferromagnetic order in heavily overdoped non-superconducting Bi-2201.","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"H. Kuroe, H. Kuwahara, I. Watanabe, M. Fujita, M. Matsuda, S. Asai, T. Adachi, T. J. Williams, T. Kawamata, T. Masuda, T. Taniguchi, Y. Ikeda, Y. Komiyama","submitted_at":"2026-05-16T13:15:53Z","abstract_excerpt":"Elastic neutron scattering experiments showed incommensurate antiferromagnetic peaks in 5% Fe-substituted Bi-2201 cuprate in the non-superconducting heavily overdoped regime. The incommensurability delta~0.21 is comparable to that observed in Fe-substituted Bi-2201 in the overdoped regime. [Hiraka et al., Phys. Rev. B 81, 144501 (2010).] The magnetic correlation length is comparable between the overdoped and non-superconducting heavily overdoped regimes. It is plausible that incommensurate antiferromagnetic order is induced and stabilized by Fe in the heavily overdoped regime, which suggests a"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"It is plausible that incommensurate antiferromagnetic order is induced and stabilized by Fe in the heavily overdoped regime, which suggests a robust antiferromagnetic correlation beyond the superconducting dome in the phase diagram.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That the observed incommensurate peaks arise specifically from Fe-induced stabilization of antiferromagnetic order rather than from other doping effects, sample inhomogeneity, or measurement artifacts in the heavily overdoped regime.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Incommensurate antiferromagnetic order with delta approximately 0.21 is observed via neutron scattering in Fe-substituted Bi-2201 in the heavily overdoped non-superconducting regime, with correlation length comparable to the overdoped case.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Iron substitution induces incommensurate antiferromagnetic order in heavily overdoped non-superconducting Bi-2201.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"f405a1b42720ae7c26358acbb92d89618b351a6d498213036ed767baf8bceeea"},"source":{"id":"2605.16988","kind":"arxiv","version":1},"verdict":{"id":"a5af1f29-b2b8-461f-ab15-b6704082530d","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T18:42:21.650936Z","strongest_claim":"It is plausible that incommensurate antiferromagnetic order is induced and stabilized by Fe in the heavily overdoped regime, which suggests a robust antiferromagnetic correlation beyond the superconducting dome in the phase diagram.","one_line_summary":"Incommensurate antiferromagnetic order with delta approximately 0.21 is observed via neutron scattering in Fe-substituted Bi-2201 in the heavily overdoped non-superconducting regime, with correlation length comparable to the overdoped case.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That the observed incommensurate peaks arise specifically from Fe-induced stabilization of antiferromagnetic order rather than from other doping effects, sample inhomogeneity, or measurement artifacts in the heavily overdoped regime.","pith_extraction_headline":"Iron substitution induces incommensurate antiferromagnetic order in heavily overdoped non-superconducting Bi-2201."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.16988/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"citation_quote_validity","ran_at":"2026-05-19T19:50:03.645808Z","status":"completed","version":"0.1.0","findings_count":0},{"name":"cited_work_retraction","ran_at":"2026-05-19T19:23:44.498058Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_title_agreement","ran_at":"2026-05-19T19:01:18.834429Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T18:51:21.719008Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"claim_evidence","ran_at":"2026-05-19T18:41:56.209128Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T18:33:26.297718Z","status":"skipped","version":"1.0.0","findings_count":0}],"snapshot_sha256":"ae7daf3492bb5c3d5876bd131811261cb9de632829ed2bdd41c9dad1758d3fc0"},"references":{"count":52,"sample":[{"doi":"","year":null,"title":"Further studie s are mandatory to investigate the origin of the IC-AFM order and the relation to ferromagnetic fluctuations in the HOD regime","work_id":"597a45d6-4e12-47cb-9966-ecc7d5ce3052","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2006,"title":"R. J. Birgeneau, C. Stock, J. M. Tranquada, and K. Y amada J. Phys. Soc. Jpn. 75, 111003 (2006)","work_id":"5df2347f-f5f9-421c-9f80-bc35ef2d9262","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1991,"title":"S.-W. Cheong, G. Aeppli, T. E. Mason, H. Mook, S. M. Hayden, P . C. Canfield, Z. Fisk, K. N. Clausen, and J. L. Martinez, Phys. Rev . Lett. 67, 1791 (1991)","work_id":"4c385e33-2799-46a6-8fd9-d886ca3302e6","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1998,"title":"K. Y amada, C. H. Lee, K. Kurahashi, J. Wada, S. Wakimoto, S. Ueki, H. Kimura, Y . Endoh, S. Hosoya, G. Shirane, R. J. Birgeneau, M. G reven, M. A. Kastner, and Y . J. Kim, Phys. Rev. B 57, 6165 (1998","work_id":"271e2e63-cd3b-4859-8dbe-b66ac8fa53fd","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":1989,"title":"J. M. Tranquada, G. Shirane, B. Keimer, S. Shamoto, and M. S ato, Phys. Rev. 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