{"paper":{"title":"Effects of crystal field and momentum-based frustrated exchange interactions on multiorbital square skyrmion lattice","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Interorbital coupling, frustrated exchanges at higher harmonics, and crystal-field anisotropy together stabilize square skyrmion lattices in multiorbital Ce magnets.","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Satoru Hayami, Yan S. Zha","submitted_at":"2025-11-08T07:44:30Z","abstract_excerpt":"Motivated by recent theoretical predictions of a square-shaped skyrmion lattice (S-SkL) in centrosymmetric tetragonal Ce-based magnets [Yan Zha and Satoru Hayami, Phys. Rev. B 111, 165155 (2025)], we perform a comprehensive theoretical investigation into the role of multiorbital effects and momentum-based frustrated exchange interactions in stabilizing such topologically nontrivial magnetic textures. By employing self-consistent mean-field calculations over a broad range of model parameters, we demonstrate that the cooperative interplay among interorbital coupling, frustrated exchange interact"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The cooperative interplay among interorbital coupling, frustrated exchange interactions at higher-harmonic wave vectors, and crystal-field-induced anisotropy is crucial for the stabilization of the S-SkL. Furthermore, the competition between the easy-plane intraorbital anisotropy and the easy-axis interorbital anisotropy leads to a significant enhancement of the S-SkL stability region.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That self-consistent mean-field theory on a multiorbital Hubbard-like model with chosen exchange parameters and crystal-field splittings faithfully captures the ground-state energetics of real Ce-based tetragonal magnets without significant fluctuation corrections or higher-order interactions.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Cooperative interplay of interorbital coupling, higher-harmonic frustrated exchanges, and competing crystal-field anisotropies enlarges the stability region of square skyrmion lattices and produces several multi-Q states including a slightly symmetry-broken S-SkL variant.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Interorbital coupling, frustrated exchanges at higher harmonics, and crystal-field anisotropy together stabilize square skyrmion lattices in multiorbital Ce magnets.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"d87fb388ed338147866cc09367873586c78a70f6bae159e22154fc0b8337072e"},"source":{"id":"2511.05896","kind":"arxiv","version":3},"verdict":{"id":"e956c620-097d-47ad-8a79-4686fc4b9186","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-18T00:21:59.789874Z","strongest_claim":"The cooperative interplay among interorbital coupling, frustrated exchange interactions at higher-harmonic wave vectors, and crystal-field-induced anisotropy is crucial for the stabilization of the S-SkL. Furthermore, the competition between the easy-plane intraorbital anisotropy and the easy-axis interorbital anisotropy leads to a significant enhancement of the S-SkL stability region.","one_line_summary":"Cooperative interplay of interorbital coupling, higher-harmonic frustrated exchanges, and competing crystal-field anisotropies enlarges the stability region of square skyrmion lattices and produces several multi-Q states including a slightly symmetry-broken S-SkL variant.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That self-consistent mean-field theory on a multiorbital Hubbard-like model with chosen exchange parameters and crystal-field splittings faithfully captures the ground-state energetics of real Ce-based tetragonal magnets without significant fluctuation corrections or higher-order interactions.","pith_extraction_headline":"Interorbital coupling, frustrated exchanges at higher harmonics, and crystal-field anisotropy together stabilize square skyrmion lattices in multiorbital Ce magnets."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2511.05896/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"6497af50b9b7c1b6b75ca71a8cf0faeff7856b56e43a4a2808f2cac84a1e8b49"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}