Role of Oxygen Incorporation in Co-Cr-Pt-Si-O Perpendicular Magnetic Recording Media

Zheng, Min; Acharya, B.R.; Choe, G.; Zhou, Jianhui; Yang, Zunde; Abarra, E.N.; Johnson, Kenneth E.

doi:10.1109/tmag.2004.832167

Cited by 64 publications

(28 citation statements)

References 8 publications

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“…Fig. 6 shows comparison of the films with a 2 nm thick Pt pre-coat layer (a) and a Ta pre-coat layer (b) [6]. The crystal orientation of the Co-Pt-Cr-SiO 2 film and the Ru underlayer on the Ta pre-coat layer was better than those on the Pt pre-coat layer.…”

Section: Ta Pre-coat Layermentioning

confidence: 99%

Preparation condition of Co–Pt–Cr–SiO2 films with high coercivity

Keitoku

Ariake

Honda

2005

Journal of Magnetism and Magnetic Materials

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Section: Ta Pre-coat Layermentioning

confidence: 99%

Preparation condition of Co–Pt–Cr–SiO2 films with high coercivity

Keitoku

Ariake

Honda

2005

Journal of Magnetism and Magnetic Materials

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“…Each grain of the Ru IL has a convex surface in order to reduce the inter-granular exchange coupling by segregation of Co-based grains and SiO 2 boundaries. Small grains in RLs have been prepared by the increment of the oxide in the RL [3,4] and by the insertion of a submonolayer for dense nucleation of Ru [5]. However, a large amount of oxide causes precipitation of the oxide in the RL grains, and the insertion layer increases the angle distribution of the magnetic easy axis of the RL grains.…”

Section: Introductionmentioning

confidence: 99%

4.8 nm diameter Ru grains grown on a large-grain seed layer for perpendicular magnetic recording media

Itagaki¹,

Saito²,

Takahashi³

2008

J. Phys. D: Appl. Phys.

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A concept for the non-magnetic intermediate layer (NMIL) is proposed, which realizes a recording layer of small and highly c-plane oriented grains with no inter-granular exchange coupling. The NMIL consists of three individual epitaxially grown functional layers: a large-grain seed layer (SL) with a highly oriented sheet texture, a first inter-layer (IL1) of small grains and a second inter-layer (IL2) of segregated non-magnetic grains. On focusing on the wettability and the lattice misfit of Ru IL against the SL material, the Mg SL is found to realize the small Ru grains of 4.8 nm diameter retaining a small orientation distribution of 4.1°.

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“…FTS system have a characteristic that substrate is not exposed to plasma, so can achieve low substrate temperature and low damage from plasma to substrate. SiO 2 added CoCrPt alloy granular media is a promising candidate for high-density magnetic recording media because segregation of CoCrPt grains in a SiO 2 matrix is suitable to achieve low media noise and high density [1][2][3]. Furthermore, CoCrPt-SiO 2 films are regarded as suitable candidate to be applicable to tape applications, since longitudinal and perpendicular CoCrPt-SiO 2 magnetic films can be prepared at room temperature [4,5].…”

Section: Introductionmentioning

confidence: 99%