Frequency dependence of magneto-impedance in spin tunneling junction

Kazuo Shiiki, Hideo Kaiju, Shigeo Fujita, Takeshi Morozumi

研究成果: Conference contribution

抄録

Spin tunneling junctions (STJ) have potential applications in the next generation of magnetic recording read heads due to the large magnetoresistance ratio. The frequency dependence of the impedance of the tunneling junction is studied and the feasibility of this application is discussed. The tunneling junction, Al/Al2O3/Al, and coercive differential STJ, Co/Al2O3/Co, were fabricated onto glass substrates by ion-beam mask sputtering. The impedance was measured using a vector impedance meter in the frequency range 0.1 to 100 MHz. The results indicate that the change in the imaginary part of the magnetoimpedance must be detected in order to utilize the STJ, particularly in the high-frequency region.

本文言語English
ホスト出版物のタイトルINTERMAG Europe 2002 - IEEE International Magnetics Conference
編集者J. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, Jo De Boeck, R. Wood
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)0780373650, 9780780373655
DOI
出版ステータスPublished - 2002 1 1
イベント2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 - Amsterdam, Netherlands
継続期間: 2002 4 282002 5 2

出版物シリーズ

名前INTERMAG Europe 2002 - IEEE International Magnetics Conference

Other

Other2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
国/地域Netherlands
CityAmsterdam
Period02/4/2802/5/2

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学
  • 表面、皮膜および薄膜

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