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arXiv 0908.3958cond-mat.mtrl-sci
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将碳纳米管的热导率降低到随机同位素极限以下

Reducing the thermal conductivity of carbon nanotubes below the random isotope limit

Gabriel Stoltz, Natalio Mingo, Francesco Mauri

摘要:

我们发现,引入分段同位素无序模式可能会大大降低原始碳纳米管的热导率低于不相关的无序值。这是声子散射过程中不同长度尺度之间相互作用的结果。我们使用从头算原子格林函数计算来量化各种类型的分割的效果类似于实验产生的同位素工程富勒烯的聚结。

英文摘要:

We find that introducing segmented isotopic disorder patterns may considerably reduce the thermal conductivity of pristine carbon nanotubes below the uncorrelated disorder value. This is a result of the interplay between different length scales in the phonon scattering process. We use ab-initio atomistic Green's function calculations to quantify the effect of various types of segmentation similar to that experimentally produced by coalescence of isotope-engineered fullerenes.

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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