한국자기학회지 (Journal of the Korean Magnetics Society)

  • 제5권4호
  • /
  • Pages.294-298
  • /
  • 1995
  • /
  • 1598-5385(pISSN)
  • /
  • 2233-6648(eISSN)
한국자기학회 (The Korean Magnetics Society)
권호 표지

ANALYSIS OF THE MUTUAL SELF-BIASED SHIELDED MAGNETO-RESISTIVE HEAD WITH TRANSMISSION-LINE MODEL(I)

  • Zhang, H.W. (Department of Information Materials University of Electronic Science and Technology China Chengdu) ;
  • Kim, H.J. (Magnetic Alloys Laboratory, Division of Metals Korea Institute of Science and Technology)
  • 발행 : 1995.08.01
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초록

A shielded magnetoresistive (SMR) head which has double MR films and linearizes each other has been designed and studied by applying the transmission-line model. We have analyzed the yoke efficiency, bias efficiency and read efficiency of the SMR head. The read efficiency strongly depends on the height of the sensor and slightly on the other geometric parameters. The yoke and bias efficiencies vary with gap length, insulated layer thickness and relative permeability. A quasi-index reduction in the signal flux is observed when the displacement moves away from the medium.

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