1. National Creative Research Initiative
Center for Semiconductor Nanorods and Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea
2. Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico
87545, United States
3. Institut
Néel, CNRS and Université Joseph Fourier, Grenoble
38042, France
4. Department
of Chemistry, POSTECH, Pohang, Gyeongbuk
790-784, Korea