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arXiv · 2012.14733

Twist-induced Near-field Thermal Switch Using Nonreciprocal Surface Magnon-Polaritons

Jiebin Peng·Gaomin Tang·Luqin Wang·Rair Macêdo·Hong Chen·Jie Ren
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Abstract

We explore that two ferromagnetic insulator slabs host a strong twist-induced near-field radiative heat transfer in the presence of twisted magnetic fields. Using the formalism of fluctuational electrodynamics, we find the existence of large twist-induced thermal switch ratio in large damping condition and nonmonotonic twist manipulation for heat transfer in small damping condition, associated with the different twist-induced effects of nonreciprocal elliptic surface magnon-polaritons, hyperbolic surface magnon-polaritons, and twist-non-resonant surface magnon-polaritons. Moreover, the near-field radiative heat transfer can be significantly enhanced by the twist-non-resonant surface magnon-polaritons in the ultra-small damping condition. Such twist-induced effect is applicable for other kinds of anisotropic slabs with timereversal symmetry breaking. Our findings provide a way to twisted and magnetic control in nanoscale thermal management and improve it with twistronics concepts.

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Jiebin Peng, Gaomin Tang, Luqin Wang, Rair Macêdo, Hong Chen, Jie Ren. 2020-12-29. Twist-induced Near-field Thermal Switch Using Nonreciprocal Surface Magnon-Polaritons. https://doi.org/10.1021/acsphotonics.0c01934

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