Many remarkable properties of graphene are derived from its large energy window for Dirac-like electronic states and have been explored for applications in electronics and photonics. In addition, strong electron-phonon interaction in graphene has led to efficient photo-thermo energy conversions, which ...
Real-time observation of nonlinear coherent phonon dynamics in single-walled carbon nanotubesSingle-walled carbon nanotubes (SWNTs) are π-conjugated, quasi-one-dimensional structures consisting of rolled-up graphene sheets that, depending on their chirality, behave as semiconductors or metals; owing ...
5. Study of Nanoscale Phonon Dynamics using Ultrafast Coherent Extreme Ultraviolet Beams. [D] . Li, Qing. 2011 机译:使用超快相干极紫外光束的纳米声子动力学研究。 6. Coherent phonon dynamics in spatially separated graphene mechanical resonators [O] . Zhuo-Zhi Zhang, Xiang-Xiang Song, Gang ...
Energy is then transferred from the electrons to the lattice through electron-phonon interactions on the 1 ps–100 ps (Figure 2C), resulting in the heating of the metal and the subsequent energy exchange with the surrounding. Figure 2: The heating and cooling of the electron gas. (A) The...
Understanding the nature of phonon transport is of both fundamental and technological importance. In this paper, we demonstrate unambiguous coherent and incoherent phonon transport in 12C/13C graphene superlattices using large-scale molecular dynamics simulations. Coherent phonon modes preserve their phases ...
Molecular dynamics simulations are used to examine the effect of interfacial species mixing on the thermal conductivity of Stillinger-Weber Si/Si_(0.7)Ge_(... ES Landry,AJH Mcgaughey - 《Physical Review》 被引量: 45发表: 2009年 Ultrafast dynamics of photoexcited coherent phonon in Bi2Te3 thi...
Nanomeshes, often referred to as phononic crystals, have been extensively explored for their unique properties, including phonon coherence and ultralow the... H Cui,T Ma,Y Wang - IOP Publishing Ltd 被引量: 0发表: 2024年 Structure-properties relations in graphene derivatives and metamaterials obtai...
Understanding the nature of phonon transport is of both fundamental and technological importance. In this paper, we demonstrate unambiguous coherent and incoherent phonon transport in 12C/13C graphene superlattices using large-scale molecular dynamics simulations. Coherent phonon modes preserve their phases ...
between different phonon modes in the GNR.#Here, the authors demonstrate that the atomic motion induced by broadband laser pulses in a single graphene nanoribbon (GNR) can be tracked by femtosecond coherent anti-Stokes Raman spectroscopy (CARS) when performed in a scanning tunnelling microscope (...
In the Graphene/h-BN vdW superlattice, we have found the wave-particle crossover of phonon transport, which is reflected in the transition from incoherent to coherent regime as the interface density increases. The analysis reveals that the increased thermal conductivity owing to coherent transport ...