Generalized decay law for particlelike and wavelike thermal phonons

Zhang, ZW; Guo, YY; Bescond, M; Chen, J; Nomura, M; Volz, S

Chen, J (corresponding author), Tongji Univ, Ctr Phonon & Thermal Energy Sci, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China.; Chen, J (corresponding author), Tongji Univ, China EU Joint Lab Nanophonon, Shanghai 200092, Peoples R China.

PHYSICAL REVIEW B, 2021; 103 (18):

Abstract

Our direct atomic simulations reveal that a thermally activated phonon mode involves a large population of elastic wave packets. These excitations are......

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