NDLI: CoNiPd Magnetic Intermediate Layers for CoPt-TiO<formula formulatype=inline><tex Notation=TeX>$_{2}$</tex> </formula> <newline/>Perpendicular Recording Media

Content Provider	IEEE Xplore Digital Library
Author	Song, M.W. Park, S.H. Byun, W.B. Kim, S.O. Lee, T.D.
Copyright Year	1965
Abstract	The present CoCrPt-oxide type granular media require Ru intermediate layer (IL) to ensure c-axis alignments of CoCrPt grains and for good magnetic isolation among grains. Double layered Ru IL composed of Ru1 deposited at lower Ar pressure and Ru2 deposited at higher Ar pressure (10 mTorr order) is used more recently. However, thickness of the Ru is presently in the range of 16 nm to 20 nm and reduction of the thickness is important in the view of writability as well as production cost. In the present work, we have introduced (111) textured semi-soft magnetic CoNiPd film of fcc structure to substitute bottom side of Ru IL (Ru1). Instead of the doubled Ru1(10 nm)/Ru2(10 nm) IL structure, CoNiPd(t nm)/Ru2(10 nm) IL structure was studied by varying CoNiPd thickness. When Co₁₆Ni₁₉Pd₆₅ (10 nm)/Ru2 was used as the intermediate layer instead of the conventional Ru1(10 nm)/Ru2(10 nm), CoPt-TiO₂ layer showed similar coercivity and average grain size but slightly deteriorated c-axis alignment and wider grain size distribution. With further increase of the CoNiPd thickness, coercivity of the CoPt-TiO₂ increased but average grain size and grain size distribution increased.
Sponsorship	IEEE Magnetics Society
Starting Page	2690
Ending Page	2693
Page Count	4
File Size	1273382
File Format	PDF
ISSN	00189464
Volume Number	45
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Perpendicular magnetic recording Grain size Argon Coercive force Saturation magnetization Sputtering Magnetic materials Material storage Production Costs perpendicular magnetic recording media Coercivity CoNiPd magnetic intermediate layer (MIL) grain size
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Stacked CoCrPt:SiO/sub 2/ Layers for perpendicular recording media

Magnetic Interaction Between Recording Layer and Soft Underlayer in Granular-Type Perpendicular Magnetic Recording Media With Thin Intermediate Layer

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CoNiPd Magnetic Intermediate Layers for CoPt-TiO$_{2}$ Perpendicular Recording Media

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