| Affiliation: | 1. Nanophysics Group, Quantum Dot Research Center, National Institute for Materials Science, Sakura 3–13, Tsukuba, Ibaraki, 305–0003 (Japan);2. Advanced Device Materials Group, Advanced Electronic Materials Center, National Institute for Materials Science, Namiki 1–1, Tsukuba, Ibaraki, 305–0044 (Japan);3. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2–1‐1 Katahira, Aoba‐ku, Sendai, 980–8577 (Japan);4. Nano‐Integration Foundry, Nanotechnology Innovation Center, National Institute for Materials Science, Sengen 1–2‐1, Tsukuba, Ibaraki, 305–0047 (Japan) |
