4:00 PM - 4:15 PM △ [10p-Z23-10] Influence of surface morphology on Contraction or Expansion of Basal Plane Partial Dislocations in 4H-SiC 〇Atsuo Hirano1, Hiroki Sakakima1, Asuka Hatano1, Satoshi Izumi1 (1.Univ. of Tokyo)