The University of Tokyo

Dowa Electronics Materials Co., Ltd.

Sayaka Umeda

Kazuyuki Matsumoto

Hiroshi Hachiya

Shin-ichi Ohkoshi

Asuka Namai

Takashi Gotoh

Shunsuke Sakurai

An epsilon-type iron oxide having an Fe-site that is substituted with a platinum group element, provided that Fe of a D-site of the epsilon-type iron oxide is not substituted with the platinum group element.

Method for improving coercive force of epsilon-type iron oxide, and epsilon-type iron oxide

To provide a method for improving a coercive force of epsilon-type iron oxide particles, and an epsilon-type iron oxide. Specifically, to provide a method for improving the coercive force of an epsilon-type iron oxide comprising: substituting Fe-site of the epsilon-type iron oxide with other element, while not substituting Fe of D-site in the epsilon-type iron oxide with other element, and the epsilon type iron oxide.

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Tokyo, Japan

Sayaka Umeda