{"paper":{"title":"Anisotropic Hubbard model on a triangular lattice -- spin dynamics in Ho Mn O_3","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Avinash Singh, Saptarshi Ghosh","submitted_at":"2005-06-19T14:02:38Z","abstract_excerpt":"The recent neutron-scattering data for spin-wave dispersion in $\\rm Ho Mn O_3$ are well described by an anisotropic Hubbard model on a triangular lattice with a planar (XY) spin anisotropy. Best fit indicates that magnetic excitations in $\\rm Ho Mn O_3$ correspond to the strong-coupling limit $U/t > \\sim 15$, with planar exchange energy $J=4t^2/U \\simeq 2.5$meV and planar anisotropy $\\Delta U \\simeq 0.35$meV."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0506475","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}