439 citations · 6.8k across the 160 of their papers we have counts for
9 papers · 1 filter
Reversal of Thermal Rectification in Quantum Systems
Lifa Zhang, Yonghong Yan, Chang-Qin Wu +2
We study thermal transport in anisotropic Heisenberg spin chains using the quantum master equation. It is found that thermal rectification changes sign when the external homogeneou…
Transient behavior of heat transport in a thermal switch
Eduardo C. Cuansing, Jian-Sheng Wang
We study the time-dependent transport of heat in a nanoscale thermal switch. The switch consists of left and right leads that are initially uncoupled. During switch-on the coupling…
Thermal expansion in carbon nanotubes and graphene: nonequilibrium Green's function approach
Jin-Wu Jiang, Jian-Sheng Wang, Baowen Li
The nonequilibrium Green's function method is applied to investigate the coefficient of thermal expansion (CTE) in single-walled carbon nanotubes (SWCNT) and graphene. It is found…
Edge states induce boundary temperature jump in molecular dynamics simulation of heat conduction
Jin-Wu Jiang, Jie Chen, Jian-Sheng Wang +1
We point out that the origin of the commonly occurred boundary temperature jump in the application of Nośe-Hoover heat bath in molecular dynamics is related to the edge modes, whic…
Molecular dynamics with quantum heat baths: results for nanoribbons and nanotubes
Jian-Sheng Wang, Xiaoxi Ni, Jin-Wu Jiang
A generalized Langevin equation with quantum baths (QMD) for thermal transport is derived with the help of nonequilibrium Green's function (NEGF) formulation. The exact relationshi…
Young's modulus of Graphene: a molecular dynamics study
Jin-Wu Jiang, Jian-Sheng Wang, Baowen Li
The Young's modulus of graphene is investigated through the intrinsic thermal vibration in graphene which is `observed' by molecular dynamics, and the results agree quite well with…
Phonon Hall thermal conductivity from Green-Kubo formula
Jian-Sheng Wang, Lifa Zhang
We derive a formula for the thermal conductivity tensor of a ballistic phonon Hall model. It is found that, although the diagonal elements of the conductivity tensor diverge to inf…
Phonon Hall Effect in Four-Terminal Junctions
Lifa Zhang, Jian-Sheng Wang, Baowen Li
Using an exact nonequilibrium Green's function formulism, the phonon Hall effect for paramagnetic dielectrics is studied in a four-terminal device setting. The temperature differen…
Thermal conductance of graphene and dimerite
Jin-Wu Jiang, Jian-Sheng Wang, Baowen Li
We investigate the phonon thermal conductance of graphene regarding the graphene sheet as the large-width limit of graphene strips in the ballistic limit. We find that the thermal…