{"paper":{"title":"The metal-insulator transition in the organic conductor $\\beta^{\\prime\\prime}$-(BEDT-TTF)$_{2}$Hg(SCN)$_{2}$Cl","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Andrzej {\\L}api\\'nski, Elena I. Zhilyaeva, Eva Rose, Martin Dressel, Minh Vu, Ralph H\\\"uber, Rimma N. Lyubovskaya, Roman \\'Swietlik, Svetlana A. Torunova, Weiwu Li","submitted_at":"2017-03-06T14:34:45Z","abstract_excerpt":"We explore the nature of the metal-insulator transition in $\\beta^{\\prime\\prime}$-(BEDT-TTF)$_{2}$Hg(SCN)$_{2}$Cl by x-ray, electrical transport, ESR, Raman and infrared investigations. Magnetic and vibrational spectroscopy concurrently reveal a gradual dimerization along the stacking direction $a$, setting in already at the crossover temperature of 150K from the metallic to the insulating state. A spin gap $\\Delta_\\sigma = 47$meV is extracted. From the activated resistivity behavior below 55K a charge gap $\\Delta_\\rho=60$meV is derived. At $T_{\\rm CO} = 72$K the C=C vibrational modes reveal t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.01894","kind":"arxiv","version":2},"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"}