Abstract
In recent years, nanophononic metamaterials (NPMs) have attracted great interest from researchers. Theoretical calculations and experimental studies have revealed the mechanism of reducing thermal conductivity through localized resonant hybridization. In addition, researchers have studied the effects of nanopillar height, spacing, and atomic mass in nanopillars on surface localization. The atomic mass mismatch in nanopillars has important application in practice. Taking the silicon-based nanopillar structure as an example, this paper studies the effects of atomic mass mismatch in nanopillars on surface localization effect and heat flux. The results show that atomic mass mismatch in nanopillars can enhance the surface localization effect, and the greater the difference in atomic mass in nanopillars, the stronger the surface localization. Finally, the effect of atomic mass mismatch in nanopillars on heat flux was calculated by nonequilibrium molecular dynamics. The results of this study can provide useful guidance for the design of nanoscale heat flux regulation devices.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call