09:00 〜 09:15 [F-5-01] Ab initio Study for Adsorption and Desorption Behavior at Step Edges of AlN(0001) and GaN(0001) Surfaces ○T. Akiyama1, T. Ohka1, K. Nakamura1, T. Ito1 (1.Mie Univ. (Japan)) https://doi.org/10.7567/SSDM.2019.F-5-01