1. Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (BK-Program), 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea, Department of Physics, Kyungpook National University, Daegu 702-701, Republic of Korea, Department of Physics and Electron Spin Science Center, Pohang University of Science and Technology, Pohang 790-784, Republic of Korea, and Department of Chemical Engineering, Changwon National University, 9 Sarim-dong, Changwon,...