Reciprocity of thermal diffusion in time-modulated systems

• Published in: Nature communications Vol. 13; no. 1; pp. 167 - 8
• Main Authors: Li, Jiaxin, Li, Ying, Cao, Pei-Chao, Qi, Minghong, Zheng, Xu, Peng, Yu-Gui, Li, Baowen, Zhu, Xue-Feng, Alù, Andrea, Chen, Hongsheng, Qiu, Cheng-Wei
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 10.01.2022; Nature Publishing Group; Nature Portfolio
• Subjects: 639/624/399/1015; 639/766/25; 639/766/530; Acoustic waves; Acoustics; Bias; Continuity equation; Diffusion; Energy harvesting; Heat conductivity; Heat transfer; Humanities and Social Sciences; Laboratories; Modulation; multidisciplinary; Photonics; Physics; Propagation; Reciprocity; Science; Science (multidisciplinary); Sound; Symmetry; Thermal diffusion; Thermal energy; Thermal management; Transport processes

The reciprocity principle governs the symmetry in transmission of electromagnetic and acoustic waves, as well as the diffusion of heat between two points in space, with important consequences for thermal management and energy harvesting. There has been significant recent interest in materials with t...