13:00 〜 15:00 [PS-8-04] Phonon Lifetimes: A Dependency on Size for Nano Silicon and Nano Germanium ○S.Y.Y. Chung1, M. Tomita1, T. Watanabe1 (1.Waseda Univ. (Japan)) https://doi.org/10.7567/SSDM.2019.PS-8-04