Ontology highlight
ABSTRACT:
SUBMITTER: Luo Y
PROVIDER: S-EPMC7244571 | biostudies-literature | 2020 May
REPOSITORIES: biostudies-literature
Luo Yixiu Y Yang Xiaolong X Feng Tianli T Wang Jingyang J Ruan Xiulin X
Nature communications 20200522 1
Many low-thermal-conductivity (κ<sub>L</sub>) crystals show intriguing temperature (T) dependence of κ<sub>L</sub>: κ<sub>L</sub> ∝ T<sup>-1</sup> (crystal-like) at intermediate temperatures whereas weak T-dependence (glass-like) at high temperatures. It has been in debate whether thermal transport can still be described by phonons at the Ioffe-Regel limit. In this work, we propose that most phonons are still well defined for thermal transport, whereas they carry heat via dual channels: normal p ...[more]