{"paper":{"title":"Strong phonon-plasmon coupled modes in the graphene/silicon carbide heterosystem","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"J. A. Schaefer, R. J. Koch, Th. Seyller","submitted_at":"2010-08-06T07:53:16Z","abstract_excerpt":"We report on strong coupling of the charge carrier plasmon $\\omega_{PL}$ in graphene with the surface optical phonon $\\omega_{SO}$ of the underlying SiC(0001) substrate with low electron concentration ($n=1.2\\times 10^{15}$ $cm^{-3}$) in the long wavelength limit ($q_\\parallel \\rightarrow 0$). Energy dependent energy-loss spectra give for the first time clear evidence of two coupled phonon-plasmon modes $\\omega_\\pm$ separated by a gap between $\\omega_{SO}$ ($q_\\parallel \\rightarrow 0$) and $\\omega_{TO}$ ($q_\\parallel >> 0$), the transverse optical phonon mode, with a Fano-type shape, in partic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.1130","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"}