{"paper":{"title":"Transport and optics at the node in a nodal loop semimetal","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.dis-nn","cond-mat.mes-hall"],"primary_cat":"cond-mat.str-el","authors_text":"J. P. Carbotte, S. P. Mukherjee","submitted_at":"2017-05-24T17:03:17Z","abstract_excerpt":"We use a Kubo formalism to calculate both A.C. conductivity and D.C. transport properties of a dirty nodal loop semimetal. The optical conductivity as a function of photon energy $\\Omega $, exhibits an extended flat background $\\sigma^{BG}$ as in graphene provided the scattering rate $\\Gamma$ is small as compared to the radius of the nodal ring $b$ (in energy units). Modifications to the constant background arise for $\\Omega\\le \\Gamma $ and the minimum D.C. conductivity $\\sigma^{DC} $ which is approached as $\\Omega^2/\\Gamma^2$ as $\\Omega\\rightarrow0$, is found to be proportional to $\\frac{\\sqr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.08866","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"}