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arXiv 1502.03077cond-mat.mes-hall
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石墨纳米结构中的电荷诱导涨落力

Charge Induced Fluctuation Forces in Graphitic Nanostructures

D. Drosdoff, Igor V. Bondarev, Allan Widom, Rudolph Podgornik, Lilia M. Woods

摘要:

纳米电路中的电容器组件的电荷波动被证明会引起一种新型的长程相互作用,它与常规的卡西米尔/范德华力共存。所开发的理论区分热效应和量子力学效应,并将其应用于涉及石墨烯纳米结构的电容器。电荷波动机制通过具有几何和量子力学分量的系统的电容来捕获。对系统的距离分离、温度、尺寸和响应特性的依赖性表明,这种类型的力可以对Casimir相互作用产生相当的甚至主导的影响。我们的研究结果强烈表明,波动引起的相互作用,由于各种热力学量可以有重要的热和量子力学的贡献,在微米和纳米级。

英文摘要:

Charge fluctuations in nano-circuits with capacitor components are shown to give rise to a novel type of long-ranged interaction, which co-exist with the regular Casimir/van der Waals force. The developed theory distinguishes between thermal and quantum mechanical effects, and it is applied to capacitors involving graphene nanostructures. The charge fluctuations mechanism is captured via the capacitance of the system with geometrical and quantum mechanical components. The dependence on the distance separation, temperature, size, and response properties of the system shows that this type of force can have a comparable and even dominant effect to the Casimir interaction. Our results strongly indicate that fluctuations induced interactions due to various thermodynamic quantities can have important thermal and quantum mechanical contributions at the micro- and nanoscale.

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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