Phonon weak couplings model and its applications: A revisit to two-temperature non-equilibrium transport

Optimizing thermal transport in graphene nanoribbon based on phonon resonance hybridization

“…Tailoring thermal conductivity of materials in atomic scale through phonon engineering is a rapidly growing area of research [5][6][7][8][9][10][11][12]. Different types of nanostructures have been proposed to reduce thermal conductivity of GNRs based on the particle nature of phonon, such as vacancies [13], edge disorders [14], and doping [15,16].…”

Efficient mechanical modulation of the phonon thermal conductivity of Mo6S6 nanowires

“…In one-dimensional materials, phonon transport is largely limited by boundary scattering due to the classical size effect, 48,65 but it can be significantly enhanced by the hydrodynamic phonon flow when the normal (N) process was much larger than the Umklapp (U) process. 66 As a result, the threephonon scattering rates of the Mo 6 S 6 nanowire subjected to zero strain were calculated, as shown in Fig.…”

Transient hydrodynamic phonon transport in two-dimensional disk geometry

“…Details can be found in our previous paper 40 . The physical nature of the photothermal conversion including photon-electron-phonon coupling is quite complicated 47,50,55 , so that here we assume that all phonons reach thermal equilibrium after absorbing the energy coming from heating laser beam 48 and the spectral weight is After the heat source is removed, the evolution of the probe temperature under different environment temperature are shown in Fig. 3.…”