Materials / Resources & Advanced Materials

Epsilon Iron Oxide (Nanoparticles)

Leading-Edge Functional Materials for the Creation of an IOT Society

In 2004, Professor Shin-ichi Ohkoshi of the Department of Chemistry at the University of Tokyo Graduate School of Science became the world’s first person to successfully synthesize epsilon iron oxide single phase (nanoparticle) high-performance hard ferrite, which demonstrates high coercive force. This material uses metal replacements to control absorption frequency and bandwidth from 35 to 222 GHz, making it suitable for applications involving the millimeter waves required for next generation communications and vehicle-mounted radar and noise absorption inside circuit boards. The Ohkoshi Lab at the University of Tokyo Graduate School, DOWA Electronics Materials, and Iwatani are working jointly in an industry-academia partnership to produce this revolutionary nanomagnetic material commercially.

Ohkoshi Lab Website (Department of Chemistry, University of Tokyo Graduate School of Science)

Product Details

Features
Anticipated Applications
Solutions to Suit Requirements
Media Coverage

Product Details

Features

1Millimeter Wave Absorption (Radio Wave Absorption)

Capable of absorbing radio waves such as the millimeter wave (76 to 77 GHz) radar used for collision prevention in automatic driving applications, millimeter wave noise generated inside circuit boards, and the frequencies over 100 GHz expected to be used for 6G and other next generation high speed communications.

2Ferromagnetic Even at Nanoscales

The world’s smallest hard ferrite magnet with magnetism confirmed to nanoscale orders. Anticipated applications include use in magnetic tape for storing voluminous data, as well as applications based on ferromagnetism combined with nanoparticles.

3Multiferroic and Light Color

In addition to the ferroelectric and ferromagnetic (multiferroic) characteristics, applications developed to take advantage of their light color are anticipated.