{"paper":{"title":"Classification of Collective Modes in a Charge Density Wave by Momentum-Dependent Modulation of the Electronic Band Structure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. F. Kemper, D. Leuenberger, I. R. Fisher, J. A. Sobota, P. Giraldo-Gallo, P. S. Kirchmann, R. G. Moore, S.-L. Yang, T. P. Devereaux, Z.-X. Shen","submitted_at":"2015-05-27T14:41:16Z","abstract_excerpt":"We present time- and angle-resolved photoemission spectroscopy measurements on the charge density wave system CeTe$_{3}$. Optical excitation transiently populates the unoccupied band structure and reveals a gap size of 2$\\Delta$ = 0.59 eV. The occupied Te-5p band dispersion is coherently modified by three modes at $\\Omega_{1}$ = 2.2 THz, $\\Omega_{2}$ = 2.7 THz and $\\Omega_{3}$ = 3 THz. All three modes lead to small rigid energy shifts whereas $\\Delta$ is only affected by $\\Omega_{1}$ and $\\Omega_{2}$. Their spatial polarization is analyzed by fits of a transient model dispersion and DFT frozen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07350","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"}