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arXiv 1101.4589cond-mat.mtrl-scicond-mat.stat-mech
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作为真正热二极管的分级非谐晶体:整流和负微分热阻的分析描述

Graded anharmonic crystals as genuine thermal diodes: Analytical description of rectification and negative differential thermal resistance

Emmanuel Pereira

摘要:

我们从物质的微观模型出发解决热流研究:我们开发了一种方法,并研究了一些非谐梯度质量晶体,弱粒子间相互作用。计算了导热系数,证明了整流效应和负微分热阻的存在。我们的形式主义使我们能够理解现象背后的机制,并表明梯度材料的性质使它们成为真正的热二极管。

英文摘要:

We address the heat flow study starting from microscopic models of matter: we develop an approach and investigate some anharmonic graded mass crystals, with weak interparticle interactions. We calculate the thermal conductivity, and show the existence of rectification and negative differential thermal resistance. Our formalism allows us to understand the mechanism behind the phenomena, and shows that the properties of graded materials make them genuine thermal diodes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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