[J-1-3] AlGaN/GaN HFET using AlN/GaN Superlattice Barrier Layer S. Yagi1, Y. Kawakami1, X. Q. Shen1, A. Nakajima1, T. Ide1, M. Shimizu1 (1.AIST) https://doi.org/10.7567/SSDM.2009.J-1-3