凹凸量子结构调制多层石墨烯突变结中的热输运

Xiaofang Peng, Xin-Jun Wang, Li-Qun Chen, Keqiu Chen
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引用次数: 9

摘要

利用力常数和弹性波连续介质模型,研究了低温下由凹凸量子结构调制的多层之字形石墨烯纳米带结的弹道声子输运和热导。结果表明,凹凸型(t形或h形)量子结构可以在极低温度下增强热导率。这种增强来自于凸形量子结构中倏逝模式的衰减长度的增加。对这些结果作了简要分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Heat transport in multilayer abrupt graphene junctions modulated with convexity-shaped quantum structure
By using the force-constant and elastic wave continuum models, we investigate the ballistic phonon transport and thermal conductance in multilayer zigzag graphene nanoribbon junctions modulated with convexity-shaped quantum structures at low temperatures. The results show that the convexity-shaped (T-shaped or H-shaped) quantum structure can enhance thermal conductance at very low temperatures. The enhancement originates from the increased attenuation length of the evanescent modes in convexity-shaped quantum structures. A brief analysis of these results is given.
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