{"paper":{"title":"Off-center Rattling Triggers High-Temperature Thermal Transport in Thermoelectric lathrates: Non-Perturbative Approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Baowen Li, Jie Chen, Jun Zhou, Qing Xi, Tsuneyoshi Nakayama, Zhongwei Zhang","submitted_at":"2018-06-13T07:01:35Z","abstract_excerpt":"Lattice thermal conductivities $\\kappa_{\\rm L}$ of type-I clathrates encapsulating \"off-center\" guest atoms behave in a way that is sharply different from those of conventional crystals such as on-center type-I clathrates. The latter decreases with increasing temperature according to 1/$T$ above a few tens\\,K. While, $\\kappa_{\\rm L}$ of off-center clathrates increase T-linearly above a few tens K. Further increasing temperature above $T\\gtrsim$100 K, $\\kappa_{\\rm L}$ saturates without exhibiting appreciable T-dependence. In this temperature regime, the standard formulation of $\\kappa_{\\rm L}$ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.04871","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"}