DATE2023.12.28 #Awards & Prizes

Assistant Professor Marie Yoshikiyo won the 40th Inoue Research Award for Young Scientists

Disclaimer: machine translated by DeepL which may contain errors.

Assistant Professor
Marie Yoshikiyo

Assistant Professor Marie Yoshikiyo of the Department of Chemistry, Graduate School of Chemistry, has been awarded the 40th Inoue Research Award for Young Scientists. The award was given to Yoshikiyo for her doctoral dissertation on the spectroscopic properties of epsilon-iron oxide nanoparticles in the millimeter-wave and terahertz-wave regions.

Epsilon-iron oxide, the focus of Dr. Yoshikiyo's doctoral research, is one of the iron oxide phases showing a unique magnetic material. It exhibits one of the largest coercivities among oxides and the highest frequency millimeter-wave absorption due to its magnetic anisotropy, originating from a crystal structure that breaks inversion symmetry. Dr. Yoshikiyo focused on the spectroscopic properties of epsilon-iron oxide and its metal-substituted variants, particularly in the millimeter-wave to terahertz-wave regions. She observed resonant absorption in the millimeter-wave region due to the precessional motion of magnetization, as well as lattice vibrations in the terahertz region. In addition, she also worked on phonon mode calculations for epsilon-iron oxide and provided theoretical verification. Through these studies, she is deepening her understanding of the origins of magnetic anisotropy in epsilon-iron oxide. Dr. Yoshikiyo's research has led to the proposal of a novel magnetic recording method, where the writing of magnetization is assisted by millimeter waves, a significant advancement with potential industrial applications. We eagerly anticipate further developments in Dr. Yoshikiyo's research.

the 40th Inoue Research Award for Young Scientists (The article is written in Japanese)
http://www.inoue-zaidan.or.jp/b-01.html?eid=00057

(Responsibility: Asuka Namai, Associate Professor, Department of Chemistry)