Thermal rectification in oscillator lattices with a ballistic spacer and next nearest-neighbor interactions.

@article{RomeroBastida2021ThermalRI,
  title={Thermal rectification in oscillator lattices with a ballistic spacer and next nearest-neighbor interactions.},
  author={Mauricio Romero-Bastida and Jeanette-Ivonne Amaya-Dur'an},
  journal={Physical review. E},
  year={2021},
  volume={103 3-1},
  pages={
          032103
        }
}
In this work we study the asymmetric heat flow, i.e., thermal rectification, of a one-dimensional, mass-graded system consisting of a coupled harmonic oscillator lattice (ballistic spacer) and two diffusive leads attached to the boundaries of the former with both nearest-neighbor and next nearest-neighbor (NNN) interactions. The latter enhance the rectification properties of the system and specially its independence on system size. The system presents a maximum rectification efficiency for a…