Phonon transport in a one-dimensional harmonic chain with long-range interaction and mass disorder
arXiv:1611.07176 · doi:10.1103/PhysRevE.94.052123
Abstract
Atomic mass and interatomic interaction are the two key quantities that significantly affect the heat conduction carried by phonons. Here, we study the effects of long-range (LR) interatomic interaction and mass-disorder on the phonon transport in a one-dimensional harmonic chain withup to 10^5 atoms. We find that while LR interaction reduces the transmission of low frequency phonons, it enhances the transmission of high frequency phonons by suppressing the localization effects caused by mass disorder. Therefore, long-range interaction is able to boost heat conductance in the high temperature regime or in the large size regime, where the high frequency modes are important.
References in corpus (10)
- Heat Transport in low-dimensional systems
- High-fidelity preparation, gates, memory and readout of a trapped-ion quantum bit
- Quantum thermal transport in nanostructures
- Trapped ion quantum computation with transverse phonon modes
- Anomalous Heat Conduction and Anomalous Diffusion in Low Dimensional Nanoscale Systems
- Effect of phonon-phonon interactions on localization
- Role of pinning potentials in heat transport through disordered harmonic chain
- Quantum Mechanical Heat Transport in Disordered Harmonic Chains
- Enhancement and reduction of one-dimensional heat conduction with correlated mass disorder
- Ballistic Heat Conduction and Mass Disorder in One Dimension