{"id":"W4407424239","doi":"10.48550/arxiv.2502.07234","title":"Hund flat band in a frustrated spinel oxide","year":2025,"lang":"en","type":"preprint","venue":"arXiv (Cornell University)","topic":"Multiferroics and related materials","field":"Materials Science","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Division of Materials Research; Ministère de la Défense Nationale; Canada First Research Excellence Fund; Office of Science; University of Tokyo; Nederlandse Organisatie voor Wetenschappelijk Onderzoek; Svenska Forskningsrådet Formas; British Columbia Knowledge Development Fund; VINNOVA; Natural Sciences and Engineering Research Council of Canada; Canadian Light Source; Flatiron Health; Canadian Institute for Advanced Research; Mitacs; Gordon and Betty Moore Foundation; Brookhaven National Laboratory; U.S. Department of Energy; Deutsche Forschungsgemeinschaft; Air Force Office of Scientific Research; Vetenskapsrådet; Canadian Institutes of Health Research; National Science Foundation","keywords":"Spinel; Oxide; Condensed matter physics; Materials science; Physics; Metallurgy","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["metaepi_narrow"],"consensus_categories":[],"category_scores_codex":[0.0004228105,0.0003845936,0.0005711659,0.0003805814,0.0001054544,0.0001342761,0.0007786776,0.0007280256,0.0008378902],"category_scores_gemma":[0.00005325823,0.000407783,0.000143782,0.0004257907,0.000137788,0.0001407309,0.0007240147,0.0005377604,0.0002455281],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002439122,"about_ca_system_score_gemma":0.0003226444,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001867115,"about_ca_topic_score_gemma":0.0002986071,"domain_scores_codex":[0.9977854,0.0001860048,0.0004010261,0.001078365,0.00008521139,0.0004639309],"domain_scores_gemma":[0.9986832,0.00006433072,0.0002518303,0.000748195,0.000110581,0.0001419054],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0005556611,0.0003592763,0.004556213,0.00103037,0.0001700035,0.002136747,0.0004273804,0.2943549,0.660375,0.03455118,0.001408086,0.00007520354],"study_design_scores_gemma":[0.009524268,0.0002146309,0.019263,0.005293087,0.0009619733,0.00002590692,0.0007769936,0.1110276,0.7151722,0.1278237,0.004786352,0.005130368],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9887187,0.0001003545,0.000745549,0.0000482164,0.001344184,0.0004461596,0.0001587413,0.0001513465,0.008286677],"genre_scores_gemma":[0.9928008,0.0003568961,0.000189801,0.00005750278,0.00005528967,0.000002026158,0.00004750478,0.00001914902,0.006470994],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1833273,"threshold_uncertainty_score":0.9998374,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.07272325902081606,"score_gpt":0.2073548631607101,"score_spread":0.1346316041398941,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}