214 citations
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cond-mat.mes-hall2021★ 37 cited
Thermal conductivity minimum of graded superlattices due to phonon localization
Yangyu Guo, Marc Bescond, Zhongwei Zhang +4
The Anderson localization of thermal phonons has been shown only in few nano-structures with strong random disorder by the exponential decay of transmission to zero and a thermal c…
cond-mat.mes-hall2021★ 71 cited
Anharmonic phonon-phonon scattering at interface by non-equilibrium Green's function formalism
Yangyu Guo, Zhongwei Zhang, Marc Bescond +3
The understanding and modeling of inelastic scattering of thermal phonons at a solid/solid interface remain an open question. We present a fully quantum theoretical scheme to quant…