1. Interdisciplinary Program in Nano-Science and Technology, Department of Physics and Astronomy, School of Chemical and Biological Engineering, Seoul National University, Seoul 151-747, Korea, Process Development Team, Semiconductor R&D Center, Samsung Electronics Co. Ltd., Gyeonggi-Do, 446-711, Korea, Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Gyungbuk 790-784, Korea, and Department of Materials Science and Engineering, Yonsei University, Seoul...