Prof. Asuka Namai
Department of Chemistry, School of Science,
The University of Tokyo
Date & Time: 15:00 - 16:00, October 10th (Fri), 2025.
Place: 1st Conference Room, 1F, Main Bldg., Sengen.
Development of functional metal oxides: Hard magnetic ferrites based on ε-iron oxide and heat-storage ceramics based on λ-titanium oxide
Prof. Asuka Namai
Department of Chemistry, School of Science,
The University of Tokyo
Abstract:
Magnetic ferrites are widely used magnetic materials owing to their affordability and chemical stability. Enhancing their magnetic anisotropy, which is typically low, could broaden their applications. Our group reported the synthesis of a novel hard magnetic ferrite, ε-iron oxide (ε-Fe2O3), by utilizing the nanosize effect; ε-Fe2O3 exhibits an Hc value above 25 kOe. In this seminar, I will present the development of hard magnetic ferrites based on ε-Fe2O3 and their magnetic functionalities and applications. I will also introduce our research on λ-Ti3O5, a trititanium pentoxide, with heat-storage functionality arising from external-stimuli-induced phase transitions.
(Contact)
Yukiko K. Takahashi, Director of Research Center for Magnetic and Spintronic Materials (CMSM)
E-mail: TAKAHASHI.Yukiko[at]nims.go.jp
E-mail: TAKAHASHI.Yukiko[at]nims.go.jp