Nanoscale protection for CoCrPT thin film magnetic recording media

J. Zhang; Y. F. Xu; J. P. Wang; C. K. Pock; R. Ji; T. C. Chong

doi:10.1109/20.950987

Nanoscale protection for CoCrPT thin film magnetic recording media

J. Zhang, Y. F. Xu, J. P. Wang, C. K. Pock, R. Ji, T. C. Chong

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

10 Scopus citations

Abstract

In this study, CrMn, CoCrPt-C multilayers and carbon overcoat were sequentially deposited on the NiAl coated glass substrate as underlayer, granular media layer, and protect layer by DC sputtering. Samples with various interlayer carbon concentration and top-layer carbon were tested for corrosion resistance in the 0.5 N HCl saturated vapor environment. The results show that surface concentration of cobalt and nickel varies with the carbon content in the magnetic layer. An nonannealed top-layer carbon and low temperature annealed interlayer carbon can provide grain-sized or nanoscale protection to the CoCrPt magnetic media. Carbon concentration within/above the top of CoCrPt-C granular thin film plays an important roles in the suppression of corrosion.

Original language	English (US)
Pages (from-to)	1849-1851
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	37
Issue number	4 I
DOIs	https://doi.org/10.1109/20.950987
State	Published - Jul 2001
Event	8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States Duration: Jan 7 2001 → Jan 11 2001

Keywords

Corrosion
Granular
Nanoscale protection and thin film

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10.1109/20.950987

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title = "Nanoscale protection for CoCrPT thin film magnetic recording media",

abstract = "In this study, CrMn, CoCrPt-C multilayers and carbon overcoat were sequentially deposited on the NiAl coated glass substrate as underlayer, granular media layer, and protect layer by DC sputtering. Samples with various interlayer carbon concentration and top-layer carbon were tested for corrosion resistance in the 0.5 N HCl saturated vapor environment. The results show that surface concentration of cobalt and nickel varies with the carbon content in the magnetic layer. An nonannealed top-layer carbon and low temperature annealed interlayer carbon can provide grain-sized or nanoscale protection to the CoCrPt magnetic media. Carbon concentration within/above the top of CoCrPt-C granular thin film plays an important roles in the suppression of corrosion.",

keywords = "Corrosion, Granular, Nanoscale protection and thin film",

author = "J. Zhang and Xu, {Y. F.} and Wang, {J. P.} and Pock, {C. K.} and R. Ji and Chong, {T. C.}",

year = "2001",

month = jul,

doi = "10.1109/20.950987",

language = "English (US)",

volume = "37",

pages = "1849--1851",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "4 I",

note = "8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) ; Conference date: 07-01-2001 Through 11-01-2001",

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TY - JOUR

T1 - Nanoscale protection for CoCrPT thin film magnetic recording media

AU - Zhang, J.

AU - Xu, Y. F.

AU - Wang, J. P.

AU - Pock, C. K.

AU - Ji, R.

AU - Chong, T. C.

PY - 2001/7

Y1 - 2001/7

N2 - In this study, CrMn, CoCrPt-C multilayers and carbon overcoat were sequentially deposited on the NiAl coated glass substrate as underlayer, granular media layer, and protect layer by DC sputtering. Samples with various interlayer carbon concentration and top-layer carbon were tested for corrosion resistance in the 0.5 N HCl saturated vapor environment. The results show that surface concentration of cobalt and nickel varies with the carbon content in the magnetic layer. An nonannealed top-layer carbon and low temperature annealed interlayer carbon can provide grain-sized or nanoscale protection to the CoCrPt magnetic media. Carbon concentration within/above the top of CoCrPt-C granular thin film plays an important roles in the suppression of corrosion.

AB - In this study, CrMn, CoCrPt-C multilayers and carbon overcoat were sequentially deposited on the NiAl coated glass substrate as underlayer, granular media layer, and protect layer by DC sputtering. Samples with various interlayer carbon concentration and top-layer carbon were tested for corrosion resistance in the 0.5 N HCl saturated vapor environment. The results show that surface concentration of cobalt and nickel varies with the carbon content in the magnetic layer. An nonannealed top-layer carbon and low temperature annealed interlayer carbon can provide grain-sized or nanoscale protection to the CoCrPt magnetic media. Carbon concentration within/above the top of CoCrPt-C granular thin film plays an important roles in the suppression of corrosion.

KW - Corrosion

KW - Granular

KW - Nanoscale protection and thin film

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DO - 10.1109/20.950987

M3 - Conference article

AN - SCOPUS:0035386575

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VL - 37

SP - 1849

EP - 1851

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 4 I

T2 - 8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag)

Y2 - 7 January 2001 through 11 January 2001

ER -

Nanoscale protection for CoCrPT thin film magnetic recording media

Abstract

Keywords

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