Effects of Localized Interface Phonons on Heat Conductivity in Ingredient Heterogeneous Solids

• Published in: Chinese physics letters Vol. 40; no. 3; pp. 36801 - 24
• Main Authors: Wu, Mei, Shi, Ruochen, Qi, Ruishi, Li, Yuehui, Feng, Tao, Liu, Bingyao, Yan, Jingyuan, Li, Xiaomei, Liu, Zhetong, Wang, Tao, Wei, Tongbo, Liu, Zhiqiang, Du, Jinlong, Chen, Ji, Gao, Peng
• Format: Journal Article
• Language: English
• Published: Chinese Physical Society and IOP Publishing Ltd 01.03.2023; International Center for Quantum Materials,Peking University,Beijing 100871,China; Electron Microscopy Laboratory,School of Physics,Peking University,Beijing 100871,China%International Center for Quantum Materials,Peking University,Beijing 100871,China; Department of Physics,University of California at Berkeley,Berkeley 94720,USA%Research and Development Center for Semiconductor Lighting Technology,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China; Interdisciplinary Institute of Light-Element Quantum Materials and Research Center for Light-Element Advanced Materials,Peking University,Beijing 100871,China; Electron Microscopy Laboratory,School of Physics,Peking University,Beijing 100871,China; Hefei National Laboratory,Hefei 230088,China; Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China%Electron Microscopy Laboratory,School of Physics,Peking University,Beijing 100871,China%State Key Laboratory for Mesoscopic Physics,School of Physics,Peking University,Beijing 100871,China; Collaborative Innovation Center of Quantum Matter,Beijing 100871,China%International Center for Quantum Materials,Peking University,Beijing 100871,China; Collaborative Innovation Center of Quantum Matter,Beijing 100871,China

Phonons are the primary heat carriers in non-metallic solids. In compositionally heterogeneous materials, the thermal properties are believed to be mainly governed by the disrupted phonon transport due to mass disorder and strain fluctuations, while the effects of compositional fluctuation induced l...