{"paper":{"title":"Twistraintronics in Square Moire Superlattices of Stacked Graphene Layers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Combining twist and strain produces square moiré superlattices in stacked graphene layers.","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Beatriz Vi\\~na-Bausa, Eva Cortes-del Rio, Federico Escudero, Francisco Guinea, Ivan Brihuega, Pierre A. Pantaleon, Roberto Carrasco, Yulia Maximenko, Zhen Zhan","submitted_at":"2025-11-06T19:00:02Z","abstract_excerpt":"We report the first observation of controlled, strain-induced square moire patterns in stacked graphene. By selectively displacing native wrinkles, we drive a reversible transition from the usual trigonal to square moire order. Scanning tunneling microscopy reveals elliptically shaped AA domains, while spectroscopy shows strong electronic correlation in the form of narrow bands with split Van Hove singularities near the Fermi level. A continuum model with electrostatic interactions reproduces these features under the specific twist-strain combination that minimizes elastic energy. This work de"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"We report the first observation of controlled, strain-induced square moire patterns in stacked graphene... A continuum model with electrostatic interactions reproduces these features under the specific twist-strain combination that minimizes elastic energy.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The observed transition to square order and the narrow bands with split Van Hove singularities arise specifically from the twist-strain combination that minimizes elastic energy, rather than from other uncontrolled factors such as substrate effects or wrinkle pinning not captured in the continuum model.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Strain-induced square moire superlattices in graphene exhibit narrow bands and split Van Hove singularities reproduced by a continuum model under twist-strain conditions that minimize elastic energy.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Combining twist and strain produces square moiré superlattices in stacked graphene layers.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"e7dd90598912c2c33905deae97b03009d8cd2f4f427c0ae25217925ea97e25ea"},"source":{"id":"2511.04741","kind":"arxiv","version":1},"verdict":{"id":"0b8baac8-abb8-4d4f-b8a2-93cdbedf5d89","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-18T00:34:07.997668Z","strongest_claim":"We report the first observation of controlled, strain-induced square moire patterns in stacked graphene... A continuum model with electrostatic interactions reproduces these features under the specific twist-strain combination that minimizes elastic energy.","one_line_summary":"Strain-induced square moire superlattices in graphene exhibit narrow bands and split Van Hove singularities reproduced by a continuum model under twist-strain conditions that minimize elastic energy.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The observed transition to square order and the narrow bands with split Van Hove singularities arise specifically from the twist-strain combination that minimizes elastic energy, rather than from other uncontrolled factors such as substrate effects or wrinkle pinning not captured in the continuum model.","pith_extraction_headline":"Combining twist and strain produces square moiré superlattices in stacked graphene layers."},"references":{"count":82,"sample":[{"doi":"","year":2018,"title":"Y. Cao, V. Fatemi, S. Fang, K. Watanabe, T. 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Pasupathy, Maxi- mized electron interactions at the magic ang","work_id":"34fe47e0-4cfe-4cae-8cca-c52df3ae29a0","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2019,"title":"M.Yankowitz, S.Chen, H.Polshyn, Y.Zhang, K.Watan- abe, T. Taniguchi, D. Graf, A. F. Young, and C. R. Dean, Tuning superconductivity in twisted bilayer graphene, Science363, 1059 (2019)","work_id":"f93009c1-9696-40ed-aea3-5dc469120885","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2021,"title":"M. Oh, K. P. Nuckolls, D. Wong, R. L. Lee, X. Liu, K. Watanabe, T. Taniguchi, and A. Yazdani, Evidence for unconventional superconductivity in twisted bilayer graphene, Nature600, 240 (2021)","work_id":"15e9d766-5b09-4952-9b06-6436aa0ddf61","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":82,"snapshot_sha256":"23b7fb50dd98090d0b30a2633fabb813cef9f3ba05013f3e60f53591f03c3315","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"a14a939a75121e676e45640453926210639aa97f6c615cf4999144acc65b16d3"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}