• DocumentCode
    438317
  • Title

    Microstructure improvement of thin Ru underlayer for CoCrPt-SiO2 granular perpendicular media

  • Author

    Mukai, Ryoichi ; Uzumaki, Takuya ; Tanaka, Atsushi

  • Author_Institution
    Adv. Magnetic Recording Lab., Fujitsu Lab. Ltd., Atsugi, Japan
  • fYear
    2005
  • fDate
    4-8 April 2005
  • Firstpage
    1575
  • Lastpage
    1576
  • Abstract
    The microstructure improvement of the thin Ru layer was discussed in order to achieve excellent recording performance of the granular-type perpendicular media. The recording layers of granular-type media were deposited on different Ru underlayers by rf magnetron sputtering method with a composite-type sputtering target that consists of CoCrPt and SiO2. The effects on the improvement of recording performances was analyzed. It was observed that the recording dependences of signal output and media noise are quite different but they show the same recording density dependences of signal-noise ratio (SNR). Realization of thin Ru underlayer for formation of high performance recording layer resulted in the investigation.
  • Keywords
    chromium alloys; cobalt alloys; crystal microstructure; magnetic recording noise; perpendicular magnetic recording; platinum alloys; ruthenium; silicon compounds; sputter deposition; CoCrPt-SiO2-Ru; granular perpendicular media; media noise; microstructure improvement; rf magnetron sputtering; signal output; signal-noise ratio; underlayer; Disk recording; Grain boundaries; Laboratories; MONOS devices; Magnetic recording; Magnetic separation; Microstructure; Perpendicular magnetic recording; Signal to noise ratio; Sputtering;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
  • Print_ISBN
    0-7803-9009-1
  • Type

    conf

  • DOI
    10.1109/INTMAG.2005.1464221
  • Filename
    1464221
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=438317