{"paper":{"title":"Proximity to Fermi-surface topological change in superconducting LaO0.54F0.46BiS2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.supr-con","authors_text":"H. Kumigashira, H. Okazaki, H. Usui, I. Tanaka, J. Sonoyama, K. Kuroki, K. Ono, K. Suzuki, K. Terashima, M. Nagao, M. Sunagawa, O. Miura, S. Watauchi, T. Muro, T. Wakita, T. Yokoya, Y. Mizuguchi, Y. Muraoka, Y. Takano","submitted_at":"2014-12-25T04:54:11Z","abstract_excerpt":"The electronic structure of nearly optimally-doped novel superconductor LaO$_{1-x}$F$_x$BiS$_2$ (${\\it x}$ = 0.46) was investigated using angle-resolved photoemission spectroscopy (ARPES). We clearly observed band dispersions from 2 to 6 eV binding energy and near the Fermi level (${\\it E}_{\\rm F}$), which are well reproduced by first principles calculations when the spin-orbit coupling is taken into account. The ARPES intensity map near ${\\it E}_{\\rm F}$ shows a square-like distribution around the $\\Gamma$(Z) point in addition to electronlike Fermi surface (FS) sheets around the X(R) point, i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7786","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"}