{"id":"W1578855685","doi":"10.1103/physrevlett.100.047004","title":"Small Fermi Surface Pockets in Underdoped High Temperature Superconductors: Observation of Shubnikov–de Haas Oscillations in<mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mml:msub><mml:mi>YBa</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Cu</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mi mathvariant=\"normal\">O</mml:mi><mml:mn>8</mml:mn></mml:msub></mml:math>","year":2008,"lang":"lv","type":"article","venue":"Physical Review Letters","topic":"Physics of Superconductivity and Magnetism","field":"Physics and Astronomy","cited_by":244,"is_retracted":false,"has_abstract":true,"ca_institutions":"Université de Sherbrooke","funders":"Engineering and Physical Sciences Research Council; Natural Sciences and Engineering Research Council of Canada","keywords":"Fermi surface; Quasiparticle; Condensed matter physics; Physics; Cuprate; Effective mass (spring–mass system); Quantum oscillations; Superconductivity; Brillouin zone; Quantum mechanics","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":"codex-gemma-dda1882f352a","candidate_categories":["metaepi_narrow","sts","scholarly_communication","research_integrity","insufficient_payload"],"consensus_categories":["metaepi_narrow","sts","research_integrity","insufficient_payload"],"category_scores_codex":[0.002926809,0.002228877,0.001310148,0.0009565772,0.002829815,0.001869818,0.004039584,0.002571235,0.1387705],"category_scores_gemma":[0.001409792,0.004130001,0.003878971,0.003476197,0.003019557,0.005563449,0.002886245,0.004536463,0.002191377],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00009003068,"about_ca_system_score_gemma":0.00319122,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.006599165,"about_ca_topic_score_gemma":0.003123673,"domain_scores_codex":[0.9821303,0.00158459,0.004017657,0.003757154,0.003817991,0.004692305],"domain_scores_gemma":[0.9870003,0.002832484,0.003255025,0.004364579,0.0004504153,0.002097156],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.001765341,0.002514341,0.0002517048,0.006009053,0.003696667,0.002156277,0.005645876,0.006337824,0.05581278,0.4431154,0.4692081,0.003486685],"study_design_scores_gemma":[0.004298965,0.001903202,0.0005635698,0.005909555,0.003119084,0.000833318,0.002088021,0.005020629,0.9616827,0.002377835,0.007723065,0.004480085],"study_design_candidate":"bench_or_experimental","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9204916,0.004084723,0.0008095657,0.00525507,0.003257372,0.0002556237,0.001760495,0.0003687989,0.06371669],"genre_scores_gemma":[0.9725174,0.006169645,0.002785015,0.00503464,0.003833211,0.001963533,0.006031781,0.001405947,0.000258883],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.9058699,"threshold_uncertainty_score":0.9996936,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02858232272396335,"score_gpt":0.2474861224913087,"score_spread":0.2189037997673454,"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."}}