{"paper":{"title":"Spin Polarization of the 12/5 Fractional Quantum Hall Effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Chao Huan, Chi Zhang, D. C. Tsui, J. S. Xia, K.W. Baldwin, K. W. West, L. N. Pfeiffer, N. S. Sullivan, W. Pan","submitted_at":"2012-04-02T23:53:20Z","abstract_excerpt":"We have carried out tilt magnetic field (B) studies of the \\nu=12/5 fractional quantum Hall state in an ultra-high quality GaAs quantum well specimen. Its diagonal magneto-resistance Rxx shows a non-monotonic dependence on tilt angle (\\theta). It first increases sharply with increasing \\theta, reaches a maximal value of ~ 70 ohms at \\theta ~ 14^o, and then decreases at higher tilt angles. Correlated with this dependence of Rxx on \\theta, the 12/5 activation energy (\\Delta_{12/5}) also shows a non-monotonic tilt dependence. \\Delta_{12/5} first decreases with increasing \\theta. Around \\theta = 1"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.0560","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":""},"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"}