About the Authors

Shin-ichi Todoroki

TODOROKI.Shin-ichi@nims.go.jp

Affiliation Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki, Japan

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SiT. Performed the experiments: SiT. Analyzed the data: SiT. Contributed reagents/materials/analysis tools: SiT. Wrote the paper: SiT.