1. Advanced Institute for Materials Research Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan
2. Department of Chemistry, Graduate School of Science Tohoku University 6-3 Aramaki-Aza-Aoba, Aoba-ku Sendai Miyagi 980-8578 Japan
3. Research Center for Thermal and Entropic Science Graduate School of Science Osaka University 1-1 Machikaneyama-cho Toyonaka Osaka 560-0043 Japan
4. Institute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
5. Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
6. Theory of Nanomaterials Group Katholieke Universiteit Leuven 3001 Leuven Belgium
7. School of Materials Science and Engineering Nankai University Tianjin 300350 China