• DocumentCode
    1261892
  • Title

    The electrical and magnetic response of yoke-type read heads based on a magnetic tunnel junction

  • Author

    Coehoorn, R. ; Cumpson, S.R. ; Ruigrok, J.J.M. ; Hidding, P.

  • Author_Institution
    Philips Res. Lab., Eindhoven, Netherlands
  • Volume
    35
  • Issue
    5
  • fYear
    1999
  • fDate
    9/1/1999 12:00:00 AM
  • Firstpage
    2586
  • Lastpage
    2588
  • Abstract
    Based on model calculations a comparison is made between yoke-type read heads containing a tunnel junction magnetoresistive element (TMRE) and containing a giant magnetoresistive element (GMRE). For typical head design parameters, TMR-based heads are 3-5 times more flux-efficient than GMR-based heads. However, for approximately 1×1 μm2 elements, the SNR of TMRE-based heads is not advantageous as long as the junction´s tunnel resistance is not drastically reduced below R=1 kΩ
  • Keywords
    giant magnetoresistance; magnetic heads; magnetic recording noise; magnetoresistive devices; tunnelling; SNR; electrical response; flux efficiency; giant magnetoresistive element; magnetic response; tunnel junction magnetoresistive element; yoke-type read head; Giant magnetoresistance; Magnetic anisotropy; Magnetic flux; Magnetic heads; Magnetic separation; Magnetic tunneling; Perpendicular magnetic anisotropy; Saturation magnetization; Soft magnetic materials; Tunneling magnetoresistance;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.800898
  • Filename
    800898
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1261892