Controlling the preferred orientation in granular CoCrPt:C thin films for high-areal density magnetic recording

Y. Xu; J. P. Wang; C. K. Pock; X. Cheng; Z. S. Shan; T. C. Chong

doi:10.1109/20.950880

Controlling the preferred orientation in granular CoCrPt:C thin films for high-areal density magnetic recording

Y. Xu, J. P. Wang, C. K. Pock, X. Cheng, Z. S. Shan, T. C. Chong

Electrical and Computer Engineering

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

7 Scopus citations

Abstract

Magnetic and structural properties of hcp-(CoCrPt):C granular thin films for potential applications in high areal density recording media have been investigated. CrX (X=1, Ru, Mn) underlayer with and without NiAl seedlayer has been applied to improve the in-plane preferred orientation of Co alloy grains. Addition of Ru or Mn to the Cr uuderlayer promotes Co (11.0) in-plane orientation; using a NiAl seedlayer promotes Co (10.0). For films with CrMn underlayer and NiAl seedlayer, H_c reaches 3460 Oe and M_rt decreases to 0.34 memu/cm². Thermal stability and reversal properties have been studied by moment-decay measurements. These granular films possess good in-plane preferred orientation of the magnetic moment and c-axis, which is desirable for high areal density longitudinal recording.

Original language	English (US)
Pages (from-to)	1491-1493
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	37
Issue number	4 I
DOIs	https://doi.org/10.1109/20.950880
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

CrX underlayer
Granular thin film
NiAl seedlayer
Preferred orientation

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abstract = "Magnetic and structural properties of hcp-(CoCrPt):C granular thin films for potential applications in high areal density recording media have been investigated. CrX (X=1, Ru, Mn) underlayer with and without NiAl seedlayer has been applied to improve the in-plane preferred orientation of Co alloy grains. Addition of Ru or Mn to the Cr uuderlayer promotes Co (11.0) in-plane orientation; using a NiAl seedlayer promotes Co (10.0). For films with CrMn underlayer and NiAl seedlayer, Hc reaches 3460 Oe and Mrt decreases to 0.34 memu/cm2. Thermal stability and reversal properties have been studied by moment-decay measurements. These granular films possess good in-plane preferred orientation of the magnetic moment and c-axis, which is desirable for high areal density longitudinal recording.",

keywords = "CrX underlayer, Granular thin film, NiAl seedlayer, Preferred orientation",

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AU - Xu, Y.

AU - Wang, J. P.

AU - Pock, C. K.

AU - Cheng, X.

AU - Shan, Z. S.

AU - Chong, T. C.

PY - 2001/7

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N2 - Magnetic and structural properties of hcp-(CoCrPt):C granular thin films for potential applications in high areal density recording media have been investigated. CrX (X=1, Ru, Mn) underlayer with and without NiAl seedlayer has been applied to improve the in-plane preferred orientation of Co alloy grains. Addition of Ru or Mn to the Cr uuderlayer promotes Co (11.0) in-plane orientation; using a NiAl seedlayer promotes Co (10.0). For films with CrMn underlayer and NiAl seedlayer, Hc reaches 3460 Oe and Mrt decreases to 0.34 memu/cm2. Thermal stability and reversal properties have been studied by moment-decay measurements. These granular films possess good in-plane preferred orientation of the magnetic moment and c-axis, which is desirable for high areal density longitudinal recording.

AB - Magnetic and structural properties of hcp-(CoCrPt):C granular thin films for potential applications in high areal density recording media have been investigated. CrX (X=1, Ru, Mn) underlayer with and without NiAl seedlayer has been applied to improve the in-plane preferred orientation of Co alloy grains. Addition of Ru or Mn to the Cr uuderlayer promotes Co (11.0) in-plane orientation; using a NiAl seedlayer promotes Co (10.0). For films with CrMn underlayer and NiAl seedlayer, Hc reaches 3460 Oe and Mrt decreases to 0.34 memu/cm2. Thermal stability and reversal properties have been studied by moment-decay measurements. These granular films possess good in-plane preferred orientation of the magnetic moment and c-axis, which is desirable for high areal density longitudinal recording.

KW - CrX underlayer

KW - Granular thin film

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KW - Preferred orientation

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ER -

Controlling the preferred orientation in granular CoCrPt:C thin films for high-areal density magnetic recording

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Keywords

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