Speaker
Mr
Hiroki Ono
(The University of Osaka)
Description
We propose the one dimensional (1D) nonlinear lattice exhibiting ballistic energy transport.
The 1D nonlinear lattice is constructed to vanish the umklapp processes which disturb smooth thermal transport.
The methodology for construction is based on the symmetry in Fourier space.
The nonlinear potential has non-locality, and the strength coefficient of long-range interaction is determined to satisfy the condition of symmetry.
We also perform numerical simulation to compute the thermal conductivity in the proposed 1D nonlinear lattice.
As a result of numerical simulation, it is shown that the 1D nonlinear lattice supports ballistic energy transport.
Author
Mr
Hiroki Ono
(The University of Osaka)
Co-authors
Prof.
Yusuke Doi
(The University of Osaka)
Prof.
Akihiro Nakatani
(The University of Osaka)