Near-Field Thermal Splitter Based on Magneto-Optical Nanoparticles  

作　　者：葛文宣 胡杨 高雷 吴小虎 Wen-Xuan Ge;Yang Hu;Lei Gao;Xiaohu Wu(School of Physical Science and Technology&Collaborative Innovation Center of Suzhou Nano Science and Technology,Soochow University,Suzhou 215006,China;School of Optical and Electronic Information,Suzhou City University,Suzhou 215104,China;Jiangsu Key Laboratory of Thin Films,Soochow University,Suzhou 215006,China;Shandong Institute of Advanced Technology,Jinan 250100,China;School of Power and Energy,Northwestern Polytechnical University,Xi'an 710072,China)

机构地区：[1]School of Physical Science and Technology&Collaborative Innovation Center of Suzhou Nano Science and Technology,Soochow University,Suzhou 215006,China [2]School of Optical and Electronic Information,Suzhou City University,Suzhou 215104,China [3]Jiangsu Key Laboratory of Thin Films,Soochow University,Suzhou 215006,China [4]Shandong Institute of Advanced Technology,Jinan 250100,China [5]School of Power and Energy,Northwestern Polytechnical University,Xi'an 710072,China

出　　处：《Chinese Physics Letters》2023年第11期66-72,共7页中国物理快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.92050104,12274314,12174281,and 52106099);the Natural Science Foundation of Jiangsu Province(Grant No.BK20221240);the Natural Science Foundation of Shandong Province(Grant No.ZR2022YQ57);the Taishan Scholars Program。

摘　　要：Based on the many-body radiative heat transfer theory,we investigate a thermal splitter based on three magneto-optical In Sb nanoparticles.The system comprises a source with adjustable parameters and two drains with fixed parameters.By leveraging the temperature and magnetic field dependence of the permittivity of In Sb,the direction of heat flux in the system can be controlled by adjusting the magnetic field or temperature at the source.Under magnetic field control,the coupling between the separated modes,and the suppression of the zero-field mode induced by the magnetic field,are utilized to achieve a thermal splitting ratio within the modulation range of 0.15–0.58.Furthermore,temperature control results in a thermal splitting ratio ranging from 0.15 to 0.99,as a result of the suppression of the zero-field mode by the magnetic field and the blue shift effect of the zero-field mode frequency increasing with temperature.Notably,the gap distance between nanoparticles does not significantly affect the splitting ratio.These findings provide valuable theoretical guidance for utilizing magneto-optical nanoparticles as thermal splitters and lay the groundwork for implementing complex heat flux networks using In Sb for energy collection and heat transfer control.

关 键 词：SPLITTING THERMAL system 

分 类 号：TK124[动力工程及工程热物理—工程热物理]