350 citations · 2.6k across the 53 of their papers we have counts for
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Magic angle in thermal conductivity of twisted bilayer graphene
Yajuan Cheng, Zheyong Fan, Tao Zhang +5
We report a local minimum in thermal conductivity in twisted bilayer graphene (TBG) at the angle of 1.08, which corresponds to the 'magic angle' in the transition of severa…
Observation of phonon Poiseuille flow in isotopically-purified graphite ribbons
Xin Huang, Yangyu Guo, Yunhui Wu +7
In recent times, the unique collective transport physics of phonon hydrodynamics motivates theoreticians and experimentalists to explore it in micro- and nanoscale and at elevated…
Observation of quasi-ballistic thermal transport of surface phonon-polaritons over hundreds of micrometres
Yunhui Wu, Jose Ordonez-Miranda, Laurent Jalabert +5
Long-distance propagation of heat carriers is essential for efficient heat dissipation in microelectronics. However, in dielectric nanomaterials, the primary heat carriers - phonon…
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…
Quantum mechanical modeling of anharmonic phonon-phonon scattering in nanostructures
Yangyu Guo, Marc Bescond, Zhongwei Zhang +3
The coherent quantum effect becomes increasingly important in the heat dissipation bottleneck of semiconductor nanoelectronics with the characteristic size shrinking down to few na…