A Millimeter‐Wave Absorber Based on Gallium‐Substituted ε‐Iron Oxide Nanomagnets | Zendy

Ohkoshi Shinichi | Zendy; Kuroki Shiro | Zendy; Sakurai Shunsuke | Zendy; Matsumoto Kazuyuki | Zendy; Sato Kimitaka | Zendy; Sasaki Shinya | Zendy

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A Millimeter‐Wave Absorber Based on Gallium‐Substituted ε‐Iron Oxide Nanomagnets

Author(s) -

Ohkoshi Shinichi,

Kuroki Shiro,

Sakurai Shunsuke,

Matsumoto Kazuyuki,

Sato Kimitaka,

Sasaki Shinya

Publication year - 2007

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200703010

Subject(s) - nanomagnet , gallium , extremely high frequency , millimeter , materials science , gallium oxide , oxide , nanotechnology , optoelectronics , metallurgy , optics , physics , magnetization , quantum mechanics , magnetic field

Restraining electromagnetic interference in the millimeter‐wave region has been accomplished with a new electromagnetic absorber composed of ε‐Ga x Fe 2− x O 3 (0.10≤ x ≤0.67) nanomagnets, which shows a ferromagnetic resonance in the range 35–147 GHz. The possibility that the ferromagnetic resonance can achieve a frequency of 190 GHz at x →0 is also suggested. See picture: H c =coercive field; f r =ferromagnetic resonance frequency.

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