Journal of Magnetics

  • 제7권2호
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  • Pages.55-58
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  • 2002
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  • 1226-1750(pISSN)
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  • 2233-6656(eISSN)
한국자기학회 (The Korean Magnetics Society)
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Micromagnetic Modeling of Spin-valve MR Head with Synthetic Antiferromagnet (SyAF)

  • Tahk, Y.W (Dep. of Materials Sci. and Eng., Korea Advanced Institute of Science and Technology) ;
  • Lee, K.J (Storage Lab. Samsung Advanced Institute of Technology) ;
  • Lee, T.D (Dep. of Materials Sci. and Eng., Korea Advanced Institute of Science and Technology)
  • 발행 : 2002.06.01
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초록

MR transfer behaviors of the permanent magnet biased spin valve MR sensors with SyAF (synthetic antiferromagnet) layers were studied by micromagnetics modeling. For narrow track MR heads, various height to width ratios were considered together with strength of permanent magnets which stabilities the free layed As the MR sensor width is reduced to $0.12 \mu{m}$, sensor height less than 0.09 ${\mu}{\textrm}{m}$ is needed to show good linearity and the Mr.t of permanent magnets smaller than 0.2 memu/$cm^2$ is sufficient for the domain stabilization. The conditions for single domain behavior of the free layer were also investigated through optimizing the biasing strength of permanent magneto the shield gap and the aspect ratio of MR sensor.

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참고문헌

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