Tomoko Eguchi

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Publication

Featured researches published by Tomoko Eguchi.

Journal of Applied Physics | 2014

Tomoko Eguchi; Naoyuki Nakagawa; Maki Yonetsu; Keiko Okamoto; Tomohiro Suetsuna; Seiichi Suenaga

(FeCo)-(SiO2) nanogranular films in which magnetic metal particles form nanosized columns, nanocolumnar, were studied. The nanostructure was formed by controlling the composition ratio of magnetic metal and insulating oxide. Inducing uniaxial anisotropy in the film plane resulted in high permeability in the GHz band and a high ferromagnetic resonance frequency. To improve the permeability loss factor, crystallinity of FeCo was controlled by adding B and Nb. As a result, an amorphous nanocolumnar film with ferromagnetic resonance frequency of greater than 5 GHz, high relative permeability of 44.9, and low loss factors of less than 1% up to 1 GHz was achieved.

Archive | 2011

Maki Yonetsu; Tomohiro Suetsuna; Kouichi Harada; Seiichi Suenaga; Yasuyuki Hotta; Toshihide Takahashi; Tomoko Eguchi; Mutsuki Yamazaki

Archive | 2009

Maki Yonetsu; Tomohiro Suetsuna; Koichi Harada; Seiichi Suenaga; Shinji Murai; Yasuyuki Hotta; Toshihide Takahashi; Tomoko Eguchi; Noritsugu Shiokawa

Archive | 2014

Tomohiro Suetsuna; Seiichi Suenaga; Toshihide Takahashi; Tomoko Eguchi; Koichi Harada; Yasuyuki Hotta

Archive | 2010

Tomohiro Suetsuna; Seiichi Suenaga; Tomoko Eguchi; Koichi Harada; Maki Yonetsu; Yasuyuki Hotta; Toshihide Takahashi

Archive | 2009

Tomoko Eguchi; Yoshihiko Nakano; Wu Mei; Taishi Fukazawa

Archive | 2009

Tomoko Eguchi; Koichi Harada; Yasuyuki Hotta; Shinji Murai; Noritsugu Shiokawa; Seiichi Suenaga; Tomohiro Suetsuna; Toshihide Takahashi; Maki Yonezu; 耕一原田; 康之堀田; 教次塩川; 誠一末永; 倫浩末綱; 伸次村井; 朋子江口; 麻紀米津; 利英高橋

Archive | 2008