[20p-C304-1~15] 22.1 Joint Session M "Phonon Engineering"

△ [20p-C304-10] Origin of Phonon Properties of Group IV Alloys Studied by Molecular Dynamics Simulation

〇(PC)Motohiro Tomita^1,2, Masataka Ogasawara¹, Takanobu Watanabe¹ (1.Waseda Univ., 2.JSPS Res. Fellow PD)

Keywords:molecular dynamics, group IV alloy, phonon

In group IV alloys, the drastically decreasing of the thermal conductivity is caused by the mass disorder scattering of phonon. The thermal properties from the MD simulation agreed with the previous reports. However, the effect of atomic mass and the interatomic potential for the phonon properties is unclear in MD simulation. In this paper, we control the atomic mass and the interatomic potential of imaginary system, independently, in MD simulation to investigate the effect of them for the phonon properties.