A phononic rectifier based on carbon schwarzite host–guest system

作     者：Zhongwei Zhang Yulou Ouyang Jie Chen Sebastian Volz 张忠卫;欧阳宇楼;陈杰;Sebastian Volz

作者机构：Center for Phononics and Thermal Energy ScienceSchool of Physics Science and EngineeringTongji UniversityShanghai 200092China China-EU Joint Laboratory for NanophononicsTongji UniversityShanghai 200092China Institute of Industrial ScienceThe University of TokyoTokyo 153-8505Japan Laboratory for Integrated Micro and Mechatronic SystemsCNRS-IIS UMI 2820The University of TokyoTokyo 153-8505Japan 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2020年第29卷第12期

页      面：50-55页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0702[理学-物理学] 

基　　金：Project supported in part by the National Natural Science Foundation of China(Grant No.11890703) Science and Technology Commission of Shanghai Municipality China(Grant Nos.19ZR1478600 and 18JC1410900) the Fundamental Research Funds for the Central Universities China(Grant No.22120200069) partially supported by CREST JST(Grant Nos.JPMJCR19Q3 and JPMJCR19I1) financial support from China Scholarship Council 

主　　题：thermal rectification phonon thermal transport 

摘      要：Thermal rectification is a promising way to manipulate the heat flow,in which thermal phonons are spectrally and collectively *** phononic devices are mostly relying on monochromatic phonons,in this work we propose a phononic rectifier based on the carbon schwarzite host–guest *** using molecular dynamic simulations,we demonstrate that the phononic rectification only happens at a specific frequency of the hybridized mode for the host–guest system,due to its strong confinement ***,a significant rectification efficiency,~134%,is observed,which is larger than most of the previously observed *** study of length and temperature effects on the phononic rectification shows that the monochromaticity and frequency of the rectified thermal phonons depend on the intrinsic anharmonicity of the host–guest system and that the on-center rattling configuration with weak anharmonicity is *** study provides a new perspective on the rectification of thermal phonons,which would be important for controlling monochromatic thermal phonons in phononic devices.