Development of millimeter wave absorber based on orthorhombic iron oxide

2016 Fiscal Year Final Research Report

• Project/Area Number: 26810045
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Functional solid state chemistry
• Research Institution: The University of Tokyo
• Principal Investigator: NAMAI ASUKA 東京大学, 大学院理学系研究科(理学部), 助教 (40632435)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 酸化鉄 / 異方性磁界 / 電磁波

Outline of Final Research Achievements

In this research project, we focused on the high-frequency electromagnetic wave resonance phenomenon in the orthorhombic iron oxide, and promoted the research with the aim of realizing high frequency electromagnetic wave absorption and rotation property. The dynamics of magnetization in resonance was investigated by analyzing the absorption spectrum. The electromagnetic rotation was observed in the sample where the magnetization direction was aligned in one direction. In addition, we clarified the origin of the high resonance frequency of this material and realized further magnetic anisotropy field improvement by metal substitution.

Free Research Field

物性化学