Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Influence of Stain on the High Frequency Impedance of Highly Magnetostrictive Films

고자왜막의 고주파임피던스에 미치는 스트레인의 영향

  • ;
  • M. Inoue ;
  • K. I, Arai ;
  • 신광호 (동북대학 전기통신연구소) ;
  • ;
  • ;
  • 사공건 (동아대학교 전기전자컴퓨터공학부)
  • Published : 2000.01.01
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Abstract

To make a practical application of a micro-strain sensors with ultrahigh sensitivity, a strain on electrical properties of micro-patterned amorphous (Fe\ulcornerco\ulcorner)\ulcornerSi\ulcornerB\ulcorner films had influenced on the impedance over frequency range from 1 MHz to 1 GHz. Reflecting excellent magnetomachanical couping properties of films, high frequency impedance was subject to change sensitively by a strain : a change in impe-dance of 39% was observed at 200 MHz applied a strain of 224$\times$10\ulcorner. To determine a optimum shape of micro-patterned films, film impedance was analyzed by virtue of its constitutive components of resis-tance and reactance. Result was shown that reduction of the resistance term(hence increase of resultant reactance term) of impedance is more effective for enhancing the strain sensitivity of films at relatively low frequency range.

Keywords

References

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