Twisted moiré conductive thermal metasurface

Extensive investigations on the moiré magic angle in twisted bilayer graphene have unlocked the emerging field—twistronics. Recently, its optics analogue, namely opto-twistronics, further expands the potential universal applicability of twistronics. However, since heat diffusion neither possesses th...

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Bibliographic Details
Published in:Nature communications 2024-03, Vol.15 (1), p.2169-2169, Article 2169
Main Authors: Li, Huagen, Wang, Dong, Xu, Guoqiang, Liu, Kaipeng, Zhang, Tan, Li, Jiaxin, Tao, Guangming, Yang, Shuihua, Lu, Yanghua, Hu, Run, Lin, Shisheng, Li, Ying, Qiu, Cheng-Wei
Format: Article
Language:English
Subjects:
639/301/1019/1015
639/301/1023
639/766/530/2795
Bilayers
Conductivity
Design
Diffusion
Electrons
Graphene
Heat conductivity
Heat transfer
Humanities and Social Sciences
Laboratories
Metasurfaces
multidisciplinary
Optics
Photonics
Photons
Science
Science (multidisciplinary)
Temperature gradients
Thermal conductivity
Thermal coupling
Twisting
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Summary:Extensive investigations on the moiré magic angle in twisted bilayer graphene have unlocked the emerging field—twistronics. Recently, its optics analogue, namely opto-twistronics, further expands the potential universal applicability of twistronics. However, since heat diffusion neither possesses the dispersion like photons nor carries the band structure as electrons, the real magic angle in electrons or photons is ill-defined for heat diffusion, making it elusive to understand or design any thermal analogue of magic angle. Here, we introduce and experimentally validate the twisted thermotics in a twisted diffusion system by judiciously tailoring thermal coupling, in which twisting an analog thermal magic angle would result in the function switching from cloaking to concentration. Our work provides insights for the tunable heat diffusion control, and opens up an unexpected branch for twistronics -- twisted thermotics, paving the way towards field manipulation in twisted configurations including but not limited to fluids. Authors control heat transfer through twisting moiré conductive thermal metasurface, showcasing the potential for manipulating thermal conductivity and temperature gradients with imitated magic angles, thereby realizing multifunctional thermal metadevices.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-024-46247-2