• DocumentCode
    1484757
  • Title

    Improvement of micromagnetism of Ni-Fe/Co67Cr33 multilayers for backlayers of perpendicular magnetic recording media

  • Author

    Ichihara, Takayuki ; Nakagawa, Shigeki ; Matsumiya, Hiroaki ; Naoe, Masahiko

  • Author_Institution
    Dept. of Phys. Electron., Tokyo Inst. of Technol., Japan
  • Volume
    33
  • Issue
    5
  • fYear
    1997
  • fDate
    9/1/1997 12:00:00 AM
  • Firstpage
    3004
  • Lastpage
    3006
  • Abstract
    The multilayers composed of soft magnetic Ni79Fe21 layers and very thin paramagnetic Co67Cr33 layers were deposited using the facing targets sputtering (FTS) apparatus. When the external field Hext of 100 Oe transverse to the direction of the plasma confining field Hp of about 20 Oe in the FTS apparatus was applied during layer deposition, the soft magnetic characteristics for the [Ni79Fe21/Co67Cr33]2 multilayers were improved. Furthermore, the relative permeability μr of the multilayers was extremely and isotropically increased especially when the multilayers were deposited at extremely low Ar pressure PAr of 0.4 mTorr
  • Keywords
    chromium alloys; cobalt alloys; iron alloys; magnetic multilayers; magnetic permeability; nickel alloys; perpendicular magnetic recording; soft magnetic materials; sputtered coatings; Ni-Fe/Co67Cr33 multilayer; Ni79Fe21-Co67Cr33; backlayer; facing targets sputtering; micromagnetism; paramagnetic layer; perpendicular magnetic recording; plasma confining field; relative permeability; soft magnetic layer; Argon; Chromium; Iron; Magnetic confinement; Magnetic multilayers; Paramagnetic materials; Plasma confinement; Plasma properties; Soft magnetic materials; Sputtering;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.617825
  • Filename
    617825
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1484757