中国物理B ›› 2020, Vol. 29 ›› Issue (12): 124402-.doi: 10.1088/1674-1056/abbbf9

所属专题: SPECIAL TOPIC — Phononics and phonon engineering

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  • 收稿日期:2020-07-28 修回日期:2020-09-23 接受日期:2020-09-28 出版日期:2020-12-01 发布日期:2020-11-19

A phononic rectifier based on carbon schwarzite host-guest system

Zhongwei Zhang(张忠卫)1,2,3, Yulou Ouyang(欧阳宇楼)1,2, Jie Chen(陈杰)1,2,†, and Sebastian Volz2,4,‡   

  1. 1 Center for Phononics and Thermal Energy Science, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China; 2 China-EU Joint Laboratory for Nanophononics, Tongji University, Shanghai 200092, China; 3 Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan; 4 Laboratory for Integrated Micro and Mechatronic Systems, CNRS-IIS UMI 2820, The University of Tokyo, Tokyo 153-8505, Japan
  • Received:2020-07-28 Revised:2020-09-23 Accepted:2020-09-28 Online:2020-12-01 Published:2020-11-19
  • Contact: Corresponding author. E-mail: jie@tongji.edu.cn Corresponding author. E-mail: volz@iis.u-tokyo.ac.jp
  • Supported by:
    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), and the Fundamental Research Funds for the Central Universities, China (Grant No. 22120200069). This work was partially supported by CREST JST (Grant Nos. JPMJCR19Q3 and JPMJCR19I1). Z. Z. gratefully acknowledges financial support from China Scholarship Council.

Abstract: Thermal rectification is a promising way to manipulate the heat flow, in which thermal phonons are spectrally and collectively controlled. As phononic devices are mostly relying on monochromatic phonons, in this work we propose a phononic rectifier based on the carbon schwarzite host-guest system. By 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 effect. Moreover, a significant rectification efficiency, 134 %, is observed, which is larger than most of the previously observed efficiencies. The 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 preferable. Our study provides a new perspective on the rectification of thermal phonons, which would be important for controlling monochromatic thermal phonons in phononic devices.

Key words: thermal rectification, phonon, thermal transport

中图分类号:  (Heat conduction)

  • 44.10.+i
05.45.-a (Nonlinear dynamics and chaos) 63.20.-e (Phonons in crystal lattices)