• DocumentCode
    83248
  • Title

    HAMR Thermal Modeling Including Media Hot Spot

  • Author

    Huang, Liwen ; Stipe, Barry ; Staffaroni, Matteo ; Juang, Jing-Ye ; Hirano, Takuichi ; Schreck, Erhard ; Huang, Fu-Ying

  • Author_Institution
    $^{1}$ San Jose Research Center, , HGST, a Western Digital Company,, San Jose,, CA , USA
  • Volume
    49
  • Issue
    6
  • fYear
    2013
  • fDate
    Jun-13
  • Firstpage
    2565
  • Lastpage
    2568
  • Abstract
    All previous thermal modeling on heat exchange between hard disk drive (HDD) head and media treated media as a heat sink with uniform ambient temperature. However in heat-assisted magnetic recording (HAMR) system, the media temperature is no longer uniform and the temperature at the hot spot center can reach as high as 800 to 1000 K depending on recording layer´s Curie temperature. In this paper, both media hot spot and the air bearing flow are included in formulating heat transfer across the head-media interface. Numerical results for a waveguide only slider and a slider with a metallic near-field transducer (NFT) are presented to illustrate the effect of HAMR media temperature.
  • Keywords
    Air-bearing surface (ABS); head-disk interface (HDI); heat-assisted magnetic recording (HAMR); media hot-spot;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.2013.2252886
  • Filename
    6522263
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=83248