大幅降低旋转频率,用非互惠基底控制旋转物体间的近场传热

IF 6.5 1区 物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Ziqi Yu*, Xiaopeng Li, Hyung-Suk Kwon, Taehwa Lee and Hideo Iizuka, 
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引用次数: 0

摘要

最近有理论报告称,一对旋转的冷热双极物体之间的近场热辐射会在低温下发生逆转。我们证明,在室温、外磁场条件下,两个锑化铟(InSb)纳米粒子之间的这种反转发生在较低的旋转频率下。此外,附近的 InSb 衬底通过充当散热器和激发与粒子共振耦合的表面模式,大大放宽了对高旋转频率的要求,而这两种模式都会受到磁场的调节。我们的研究结果让人们对旋转频率降低的纳米结构之间的近场热传递逆转有了重要的认识,并为室温附近的热逆转实验观测提供了可能性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Significantly Reduced Rotation Frequency for Controlling Near-Field Heat Transfer between Rotating Objects by a Nonreciprocal Substrate

Significantly Reduced Rotation Frequency for Controlling Near-Field Heat Transfer between Rotating Objects by a Nonreciprocal Substrate

Reversing near-field thermal radiation between a rotating pair of hot and cold dipolar objects has recently been theoretically reported at low temperature. We demonstrate that such a reversal between two indium antimonide (InSb) nanoparticles occurs at lower rotation frequency at room temperature under an external magnetic field. Additionally, a nearby InSb substrate significantly relaxes the requirement of high rotation by acting as a heat sink and exciting surface modes that couple with particle resonances, both of which are tuned by the magnetic field. Our results provide a critical understanding about reversing near-field heat transfer between nanostructures with reduced rotation frequency, pointing to the possibility of experimental observation of heat reversal around room temperature.

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来源期刊
ACS Photonics
ACS Photonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
11.90
自引率
5.70%
发文量
438
审稿时长
2.3 months
期刊介绍: Published as soon as accepted and summarized in monthly issues, ACS Photonics will publish Research Articles, Letters, Perspectives, and Reviews, to encompass the full scope of published research in this field.
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