{"paper":{"title":"The antiferromagnetic transition in the frustrated bixbyite $\\beta$-Fe$_2$O$_3$ magnet","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"(2) Regional Centre of Advanced Technologies, 3), (3) Nanotechnology Centre-CEET VSB-TUO. Ostrava. Poruba, (4) Research Centre of FEEI-UPCE. Pardubice. Czech Republic., (5) CELLS-ALBA Synchrotron. Cerdanyola del Vall\\`es (Barcelona). Spain), Chenjun Tang (1), Czech Republic., Francois Fauth (5), Ji\\v{r}i Tu\\v{c}ek (4), Jose Luis Garcia-Mu\\~noz (1) ((1) Institut de Ci\\`encia de Materials de Barcelona (ICMAB-CSIC). Cerdanyola del Vall\\`es. Spain., Marti Gich (1), Materials. CATRIN. Olomouc. Czech Republic., Ond\\v{r}ej Malina (2","submitted_at":"2026-06-16T12:10:26Z","abstract_excerpt":"Although Fe$_2$O$_3$ compounds are among the most extensively studied transition-metal oxides, the magnetic properties of $\\beta$-Fe$_2$O$_3$ remain poorly characterized. Using neutron and synchrotron X-ray diffraction, we investigate the temperature-driven magnetic transition in $\\beta$-Fe$_2$O$_3$. A noncollinear antiferromagnetic structure sets in abruptly via activation of irrep $mH_1^{+}$ at the H-point [$\\mathbf{k}=(1,1,1)$] together with antitranslation $(1'|\\tfrac{1}{2},\\tfrac{1}{2},\\tfrac{1}{2})$. Below $T_{\\mathrm{N}}$, the magnetic cell becomes primitive $(P_I a \\bar{3})$, yielding "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.17842","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.17842/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":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}