Tae-Sik Yoon, Jang-Yeon Kwon, Dong-Hoon Lee, Seok-Hong Min, Dong-Hyuk Chae, Dae Hwan Kim, Jong Duk Lee, Byung-Gook Park, Hwack Joo Lee, and Ki-Bum Kim
Journal of Applied PhysicsJ. Appl. Phys.
87 / 2449 / 2000