论文标题

纳米系统中的非峰热传输

Non-Fourier heat transport in nanosystems

论文作者

Benenti, Giuliano, Donadio, Davide, Lepri, Stefano, Livi, Roberto

论文摘要

小纳米化系统中的能量转移与宏观对应物中的能量转移可能会大不相同,因为尺寸降低,与表面,无序和大波动的相互作用。这些成分可能会引起非扩散的传热,需要在小尺度上考虑到。从非平衡统计力学和原子模拟的角度来看,我们概述了该领域的最新进展。我们总结了基本的基本属性,导致违反了热传输及其通用特征的标准扩散图,并具有一定的历史观点。我们还通过说明远程互动和集成性对非扩散运输的影响来完成此情况。然后,我们讨论如何利用所有这些功能来用于热管理,整流并提高能量转化的效率。最后,我们对单一聚合物,纳米管和二维材料中异常热传输的原子模拟的最新成就进行了综述。还提供了现有的实验文献的简短描述。}

Energy transfer in small nanosized systems can be very different from that in their macroscopic counterparts due to reduced dimensionality, interaction with surfaces, disorder, and large fluctuations. Those ingredients may induce non-diffusive heat transfer that requires to be taken into account on small scales. We provide an overview of the recent advances in this field from the points of view of nonequilibrium statistical mechanics and atomistic simulations. We summarize the underlying basic properties leading to violations of the standard diffusive picture of heat transport and its universal features, with some historical perspective. We complete this scenario by illustrating also the effects of long-range interaction and integrability on non-diffusive transport. Then we discuss how all of these features can be exploited for thermal management, rectification and to improve the efficiency of energy conversion. We conclude with a review on recent achievements in atomistic simulations of anomalous heat transport in single polymers, nanotubes and two-dimensional materials. A short account of the existing experimental literature is also given.}

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