116 citations · 347 across the 12 of their papers we have counts for
12 papers
Intrinsic Temporal Coherence Governs Heat Transport of Zone-Folded Phonons
Xiaoyu Huang, Yuxiang Ni, Zhongwei Zhang +4
While spatial phonon coherence manifested through band folding is believed to be a key factor governing the anomalous thermal conductivity of periodic structures, we investigate ph…
Assessing Phonon Coherence Using Spectroscopy
Zhongwei Zhang, Yangyu Guo, Marc Bescond +3
As a fundamental physical quantity of thermal phonons, temporal coherence participates in a broad range of thermal and phononic processes, while a clear methodology for the measure…
Strong phase correlation between diffusons governs heat conduction in amorphous silicon
Zhongwei Zhang, Yangyu Guo, Marc Bescond +3
Understanding the thermal vibrations and thermal transport in amorphous materials is an important but long-standing issue in several theoretical and practical fields. Using direct…
Heat conduction theory including phonon coherence
Zhongwei Zhang, Yangyu Guo, Marc Bescond +3
Understanding and quantifying the fundamental physical property of coherence of thermal excitations is a long-standing and general problem in physics. The conventional theory, i.e.…
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…
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…