Presentation 2003/6/5
Microstructure and Segregation Effect of Co/Pd Multilayer Perpendicular Magnetic Recording Media
Satoshi MATSUNUMA, Akira YANO, Tetsunori KODA, Tsuyoshi ONUMA, Enji FUJITA, Hideaki YAMANAKA,
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Abstract(in English) We have investigated the effect of cross-sectional modulated boron segregation on Co/Pd multilayer perpendicular magnetic recording media in terms of the microstructure. Modulated contents of boron in depth profile in Co/Pd multilayer were successively achieved by controlling the process condition, especially richer boron contents in the seed layer than the magnetic layer. Microstructure analysis by a transmission electron microscopy (TEM) with high annular angle dark field (HAADF) detector and X-ray photoelectron spectroscopy (XPS) clearly showed that the boron content gradient provides boron diffusion not only in plane but also along cross-sectional direction of the magnetic layer. Observed magnetic properties suggested that this gradient diffusion support reduction of intergrain exchange coupling and improvement of the magnetic properties.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Co-Pd multilayers / boron / perpendicular magnetic recording / seed layer effect
Paper # MR2003-3
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Committee MR
Conference Date 2003/6/5(1days)
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Registration To Magnetic Recording (MR)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Microstructure and Segregation Effect of Co/Pd Multilayer Perpendicular Magnetic Recording Media
Sub Title (in English)
Keyword(1) Co-Pd multilayers
Keyword(2) boron
Keyword(3) perpendicular magnetic recording
Keyword(4) seed layer effect
1st Author's Name Satoshi MATSUNUMA
1st Author's Affiliation Hitachi Maxell, Ltd. Development & Technology Division()
2nd Author's Name Akira YANO
2nd Author's Affiliation Hitachi Maxell, Ltd. Development & Technology Division
3rd Author's Name Tetsunori KODA
3rd Author's Affiliation Hitachi Maxell, Ltd. Development & Technology Division
4th Author's Name Tsuyoshi ONUMA
4th Author's Affiliation Hitachi Maxell, Ltd. Development & Technology Division
5th Author's Name Enji FUJITA
5th Author's Affiliation Hitachi Maxell, Ltd. Development & Technology Division
6th Author's Name Hideaki YAMANAKA
6th Author's Affiliation Hitachi Maxell, Ltd. Development & Technology Division
Date 2003/6/5
Paper # MR2003-3
Volume (vol) vol.103
Number (no) 109
Page pp.pp.-
#Pages 4
Date of Issue