Frequency dependence of magneto-impedance in spin tunneling junction

Kazuo Shiiki, Hideo Kaiju, Shigeo Fujita, Takeshi Morozumi

Research output: Contribution to journalConference articlepeer-review


The frequency dependence of the impedance of tunneling junction was studied and the feasibility of this application was discussed. Tunneling junction, Al/Al2O3/Al, and coercive differential spin tunneling junctions (STJ), Co/Al2O3/Co were fabricated onto a glass substrate using ion-beam mask sputtering. Impedance was measured using a vector impedance meter in the frequency range 0.1 to 100 MHz. Results indicated that the change in the imaginary part of magneto-impedance, should be detected to utilize the STJ in the high-frequency region.

Original languageEnglish
Pages (from-to)ER01
JournalDigests of the Intermag Conference
Publication statusPublished - 2002 Dec 1
Event2002 IEEE International Magnetics Conference-2002 IEEE INTERMAG - Amsterdam, Netherlands
Duration: 2002 Apr 282002 May 2

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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