A quasi-continuum thermomechanical model for phonon damping analysis of single crystal silicon nano-resonators

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• 作者：Y. Yu ; H. Zhao ; G. Li ; ^{gli@clemson.edu}
• 关键词：Damping ; Phonon transport ; Thermomechanical model ; Nano-resonators ; Quality factor
• 刊名：International Journal of Heat and Mass Transfer
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：106
• 期：Complete
• 页码：491-502
• 全文大小：1200 K
• 卷排序：106

文摘

We present a quasi-continuum thermomechanical model for nanostructures. The model accounts for both thermoelastic and Akhiezer energy dissipation mechanisms. The model provides reasonably accurate results compared to MD simulations. Size, surface-volume ratio and vibrational mode have significant effects on damping.