Scatter diagram analysis of Cr segregation in Co-Cr based recording media

Werner Grogger; Kannan M. Krishnan

doi:10.1109/20.950872

Scatter diagram analysis of Cr segregation in Co-Cr based recording media

Werner Grogger^*, Kannan M. Krishnan

^*Corresponding author for this work

Institute of Electron Microscopy and Nanoanalysis (5190)

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

Abstract

The segregation of Cr in Co-Cr based thin film recording media was measured using energy-filtered TEM images and quantitatively evaluated by the scatter diagram (SD) method. Following a description of such SD analysis it is applied to the measurement of Cr segregation in two CoCrPtB thin film recording media with different Cr contents. Taking the entire data sets into account, the two dimensional distribution of the nonmagnetic, high Cr phase can be visualized and determined quantitatively. Cr segregates to the intergranular regions and the sample with the higher Cr content shows a significantly higher and more uniform distribution of the nonmagnetic phase at the boundaries. This leads to better magnetic isolation between the grains and correlates with the better recording performance observed in the same sample.

Original language	English
Pages (from-to)	1465-1467
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	37
Issue number	4 I
DOIs	https://doi.org/10.1109/20.950872
Publication status	Published - 1 Jul 2001
Event	8th Joint Magnetism and Magnetic Materials -International Magnetic Conference: MMM-Intermag 2001 - San Antonio, United States Duration: 7 Jan 2001 → 11 Jan 2001

Keywords

Cr segregation
Energy-filtered TEM
Recording media
Scatter diagrams

ASJC Scopus subject areas

Electrical and Electronic Engineering
Physics and Astronomy (miscellaneous)

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10.1109/20.950872

Cite this

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title = "Scatter diagram analysis of Cr segregation in Co-Cr based recording media",

abstract = "The segregation of Cr in Co-Cr based thin film recording media was measured using energy-filtered TEM images and quantitatively evaluated by the scatter diagram (SD) method. Following a description of such SD analysis it is applied to the measurement of Cr segregation in two CoCrPtB thin film recording media with different Cr contents. Taking the entire data sets into account, the two dimensional distribution of the nonmagnetic, high Cr phase can be visualized and determined quantitatively. Cr segregates to the intergranular regions and the sample with the higher Cr content shows a significantly higher and more uniform distribution of the nonmagnetic phase at the boundaries. This leads to better magnetic isolation between the grains and correlates with the better recording performance observed in the same sample.",

keywords = "Cr segregation, Energy-filtered TEM, Recording media, Scatter diagrams",

author = "Werner Grogger and Krishnan, {Kannan M.}",

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T1 - Scatter diagram analysis of Cr segregation in Co-Cr based recording media

AU - Grogger, Werner

AU - Krishnan, Kannan M.

PY - 2001/7/1

Y1 - 2001/7/1

N2 - The segregation of Cr in Co-Cr based thin film recording media was measured using energy-filtered TEM images and quantitatively evaluated by the scatter diagram (SD) method. Following a description of such SD analysis it is applied to the measurement of Cr segregation in two CoCrPtB thin film recording media with different Cr contents. Taking the entire data sets into account, the two dimensional distribution of the nonmagnetic, high Cr phase can be visualized and determined quantitatively. Cr segregates to the intergranular regions and the sample with the higher Cr content shows a significantly higher and more uniform distribution of the nonmagnetic phase at the boundaries. This leads to better magnetic isolation between the grains and correlates with the better recording performance observed in the same sample.

AB - The segregation of Cr in Co-Cr based thin film recording media was measured using energy-filtered TEM images and quantitatively evaluated by the scatter diagram (SD) method. Following a description of such SD analysis it is applied to the measurement of Cr segregation in two CoCrPtB thin film recording media with different Cr contents. Taking the entire data sets into account, the two dimensional distribution of the nonmagnetic, high Cr phase can be visualized and determined quantitatively. Cr segregates to the intergranular regions and the sample with the higher Cr content shows a significantly higher and more uniform distribution of the nonmagnetic phase at the boundaries. This leads to better magnetic isolation between the grains and correlates with the better recording performance observed in the same sample.

KW - Cr segregation

KW - Energy-filtered TEM

KW - Recording media

KW - Scatter diagrams

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 4 I

T2 - 8th Joint Magnetism and Magnetic Materials -International Magnetic Conference

Y2 - 7 January 2001 through 11 January 2001

ER -

Scatter diagram analysis of Cr segregation in Co-Cr based recording media

Abstract

Keywords

ASJC Scopus subject areas

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