{"paper":{"title":"Incommensurate Spin-Density Waves in a Frustrated Maple-Leaf Lattice Ferromagnet","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Exact diagonalization finds an extended regime of incommensurate spin-density-wave correlations with continuously evolving ordering vector at the ferromagnetic boundary of the maple-leaf lattice Heisenberg model, rather than a spin-nematic ","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Alexander Wietek, Paul L. Ebert, Yasir Iqbal","submitted_at":"2026-05-12T18:00:00Z","abstract_excerpt":"We study how ferromagnetism breaks down in the spin-$\\tfrac12$ nearest-neighbor Heisenberg model on the maple-leaf lattice with ferromagnetic $J_t,J_d$ and antiferromagnetic $J_h$, motivated by the mixed ferro-antiferromagnetic interactions in Na$_2$Mn$_3$O$_7$. Exact diagonalization shows that the ferromagnetic boundary does not feature a zero-field spin-nematic phase on the clusters studied here, but an extended regime of incommensurate spin-density-wave correlations with continuously evolving ordering vector. The phase diagram also contains collinear N\\'eel, canted $120^\\circ$, and hexagona"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Exact diagonalization shows that the ferromagnetic boundary does not feature a zero-field spin-nematic phase on the clusters studied here, but an extended regime of incommensurate spin-density-wave correlations with continuously evolving ordering vector.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The finite clusters studied are large enough and representative enough that the observed incommensurate spin-density-wave regime and absence of spin-nematic order persist in the thermodynamic limit.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Exact diagonalization reveals an extended regime of incommensurate spin-density waves with continuously varying ordering vector on the ferromagnetic boundary of the maple-leaf lattice Heisenberg model.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Exact diagonalization finds an extended regime of incommensurate spin-density-wave correlations with continuously evolving ordering vector at the ferromagnetic boundary of the maple-leaf lattice Heisenberg model, rather than a spin-nematic ","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"34fe043394ef274b2dad1484201e94537a41eb92688123b2b66eee4abb57fd69"},"source":{"id":"2605.12592","kind":"arxiv","version":1},"verdict":{"id":"b6777b86-67a9-4083-834b-7577be935b92","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-14T20:38:36.121223Z","strongest_claim":"Exact diagonalization shows that the ferromagnetic boundary does not feature a zero-field spin-nematic phase on the clusters studied here, but an extended regime of incommensurate spin-density-wave correlations with continuously evolving ordering vector.","one_line_summary":"Exact diagonalization reveals an extended regime of incommensurate spin-density waves with continuously varying ordering vector on the ferromagnetic boundary of the maple-leaf lattice Heisenberg model.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The finite clusters studied are large enough and representative enough that the observed incommensurate spin-density-wave regime and absence of spin-nematic order persist in the thermodynamic limit.","pith_extraction_headline":"Exact diagonalization finds an extended regime of incommensurate spin-density-wave correlations with continuously evolving ordering vector at the ferromagnetic boundary of the maple-leaf lattice Heisenberg model, rather than a spin-nematic "},"references":{"count":49,"sample":[{"doi":"","year":2004,"title":"O. 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