High-Efficient Photonic Thermal Rectification with Magnetocontrollability

Kaiyu Wang 1

Lei Gao 1, 2, Email

1 College of Physical Science and Technology, Soochow University, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China

2 Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006, China

Abstract

We demonstrate strong thermal rectification effect based on the thermal radiation between two InSb nanospheres, with the magnetic field breaking the symmetry of system. The results reveal the thermal rectifier can achieve good efficiency in the temperature band from 330 K to 500 K and the high rectification factor is up to 100 under the temperature bias of 100 K. Strong on- and off-resonance switching regulated by magnetic field leads to large difference of thermal flux in the forward and reverse scenarios. This study might be useful for efficient thermal management, thermal radiative insulation, and thermal information processing.

High-Efficient Photonic Thermal Rectification with Magnetocontrollability