温度振荡对谐波系统中储能整流的影响。

IF 2.3 4区 物理与天体物理 Q3 PHYSICS, CONDENSED MATTER
Renai Chen, Galen T Craven
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引用次数: 0

摘要

整流是电流在一个系统中沿一个方向的优先传输,由于它对控制纳米尺度的热和电子电流非常重要,因此在分子中引起了极大的关注。在这里,我们报告了分子链中存在的储能整流效应。这种现象是通过将谐波分子链置于振荡的温度梯度下产生的,并表明系统的能量吸收率取决于梯度的方向。我们研究了振荡梯度、分子链的不对称性和系统参数如何影响分子链的储能整流比。我们发现,在温度随时间变化的谐波晶格结构中可以观察到能量存储整流,相应地,在这类系统中产生这种整流机制并不需要非谐波性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The effect of temperature oscillations on energy storage rectification in harmonic systems.

Rectification, the preferential transport of a current in one direction through a system, has garnered significant attention in molecules because of its importance for controlling thermal and electronic currents at the nanoscale. Here, we report the presence of energy storage rectification effects in a molecular chain. This phenomenon is generated by subjecting a harmonic molecular chain to an oscillating temperature gradient and showing that the energy absorption rate of the system depends on the direction of the gradient. We examine how the energy storage rectification ratios in the chain are affected by the oscillating gradient, asymmetry in the chain, and the system parameters. We find that energy storage rectification can be observed in harmonic lattice structures with time-dependent temperatures and that, correspondingly, anharmonicity is not required to generate this rectification mechanism in such systems.

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来源期刊
Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter 物理-物理:凝聚态物理
CiteScore
5.30
自引率
7.40%
发文量
1288
审稿时长
2.1 months
期刊介绍: Journal of Physics: Condensed Matter covers the whole of condensed matter physics including soft condensed matter and nanostructures. Papers may report experimental, theoretical and simulation studies. Note that papers must contain fundamental condensed matter science: papers reporting methods of materials preparation or properties of materials without novel condensed matter content will not be accepted.
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