{"id":"W4409721668","doi":"10.1038/s43246-025-00791-6","title":"Incipient ferroelectricity in methylammonium lead halide perovskites","year":2025,"lang":"en","type":"article","venue":"Communications Materials","topic":"Perovskite Materials and Applications","field":"Engineering","cited_by":6,"is_retracted":false,"has_abstract":true,"ca_institutions":"Simon Fraser University","funders":"Office of Naval Research; Natural Sciences and Engineering Research Council of Canada","keywords":"Halide; Ferroelectricity; Lead (geology); Perovskite (structure); Materials science; Chemistry; Inorganic chemistry; Optoelectronics; Crystallography; Geology; Dielectric; Geomorphology","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0000585122,0.0001021275,0.00011448,0.00009765765,0.000154013,0.0001853075,0.0001429959,0.0001233923,0.000706582],"category_scores_gemma":[0.0001420804,0.00009340743,0.00006560318,0.0001275353,0.0001726743,0.0001860456,0.0001455025,0.0002300935,0.0001205987],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000108882,"about_ca_system_score_gemma":0.0001092485,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0006077297,"about_ca_topic_score_gemma":0.0009455582,"domain_scores_codex":[0.9999408,0.000005907804,0.000003010806,0.00001209037,0.00002626824,0.00001208101],"domain_scores_gemma":[0.9999363,0.00002272086,0.00001885095,0.000004079372,0.00001113729,0.000006891851],"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":[0.00007198385,0.0000119246,0.001130856,0.00005100575,0.000004129365,0.0001368544,0.00005556739,0.0002720775,0.9966645,0.000240138,0.00003396083,0.001326884],"study_design_scores_gemma":[0.00001066013,0.00009380647,0.004535709,0.00000435525,0.000007732755,0.000307564,0.00008506003,0.002257319,0.9916949,0.000195016,0.000803772,0.000004205012],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9977283,0.0004651588,0.0005669266,0.0000415145,0.000003402856,0.000003361288,0.00005007977,0.0000162653,0.001124931],"genre_scores_gemma":[0.9988778,0.0001304902,0.0003865711,0.00001005006,0.0000016818,0.000003110603,0.00004338138,0.000004993559,0.0005418597],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.000706582,"threshold_uncertainty_score":0.002363741,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0168627815242595,"score_gpt":0.2755367588423328,"score_spread":0.2586739773180733,"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."}}