Ti grain cutting layer and Pt underlayer for CoCr based single magnetic layered perpendicular magnetic recording media

Byung Kyu Lee; Hoon Sang Oh; Kyoung Jin Lee; No Yeol Park

doi:10.1109/INTMAG.2002.1001005

Ti grain cutting layer and Pt underlayer for CoCr based single magnetic layered perpendicular magnetic recording media

Byung Kyu Lee, Hoon Sang Oh, Kyoung Jin Lee, No Yeol Park

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

For CoCr based perpendicular magnetic recording (PMR) disks, a Ti underlayer has been commonly used because it is known to improve the c-axis preferred orientation of the recording media. However, it has also been reported that a magnetically unstable initial layer exists between the Ti underlayer and the CoCr based recording layer because of large lattice mismatch between Ti and the recording layer. In this work, we propose a new underlayer structure composed of Ti/Pt double layers for a CoCrPtX magnetic film, which was found to successfully reduce the grain/domain size and exchange coupling in the recording layer, maintaining excellent c-axis preferred orientation of the film.

Original language	English
Title of host publication	INTERMAG Europe 2002 - IEEE International Magnetics Conference
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	0780373650, 9780780373655
DOIs	https://doi.org/10.1109/INTMAG.2002.1001005
Publication status	Published - 2002
Externally published	Yes
Event	2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 - Amsterdam, Netherlands Duration: 2002 Apr 28 → 2002 May 2

Other

Other	2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
Country/Territory	Netherlands
City	Amsterdam
Period	02/4/28 → 02/5/2

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering
Surfaces, Coatings and Films

Access to Document

10.1109/INTMAG.2002.1001005

Cite this

Ti grain cutting layer and Pt underlayer for CoCr based single magnetic layered perpendicular magnetic recording media. / Lee, Byung Kyu; Oh, Hoon Sang; Lee, Kyoung Jin et al.
INTERMAG Europe 2002 - IEEE International Magnetics Conference. Institute of Electrical and Electronics Engineers Inc., 2002. 1001005.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lee, BK, Oh, HS, Lee, KJ & Park, NY 2002, Ti grain cutting layer and Pt underlayer for CoCr based single magnetic layered perpendicular magnetic recording media. in INTERMAG Europe 2002 - IEEE International Magnetics Conference., 1001005, Institute of Electrical and Electronics Engineers Inc., 2002 IEEE International Magnetics Conference, INTERMAG Europe 2002, Amsterdam, Netherlands, 02/4/28. https://doi.org/10.1109/INTMAG.2002.1001005

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abstract = "For CoCr based perpendicular magnetic recording (PMR) disks, a Ti underlayer has been commonly used because it is known to improve the c-axis preferred orientation of the recording media. However, it has also been reported that a magnetically unstable initial layer exists between the Ti underlayer and the CoCr based recording layer because of large lattice mismatch between Ti and the recording layer. In this work, we propose a new underlayer structure composed of Ti/Pt double layers for a CoCrPtX magnetic film, which was found to successfully reduce the grain/domain size and exchange coupling in the recording layer, maintaining excellent c-axis preferred orientation of the film.",

author = "Lee, {Byung Kyu} and Oh, {Hoon Sang} and Lee, {Kyoung Jin} and Park, {No Yeol}",

year = "2002",

doi = "10.1109/INTMAG.2002.1001005",

language = "English",

booktitle = "INTERMAG Europe 2002 - IEEE International Magnetics Conference",

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Y1 - 2002

N2 - For CoCr based perpendicular magnetic recording (PMR) disks, a Ti underlayer has been commonly used because it is known to improve the c-axis preferred orientation of the recording media. However, it has also been reported that a magnetically unstable initial layer exists between the Ti underlayer and the CoCr based recording layer because of large lattice mismatch between Ti and the recording layer. In this work, we propose a new underlayer structure composed of Ti/Pt double layers for a CoCrPtX magnetic film, which was found to successfully reduce the grain/domain size and exchange coupling in the recording layer, maintaining excellent c-axis preferred orientation of the film.

AB - For CoCr based perpendicular magnetic recording (PMR) disks, a Ti underlayer has been commonly used because it is known to improve the c-axis preferred orientation of the recording media. However, it has also been reported that a magnetically unstable initial layer exists between the Ti underlayer and the CoCr based recording layer because of large lattice mismatch between Ti and the recording layer. In this work, we propose a new underlayer structure composed of Ti/Pt double layers for a CoCrPtX magnetic film, which was found to successfully reduce the grain/domain size and exchange coupling in the recording layer, maintaining excellent c-axis preferred orientation of the film.

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M3 - Conference contribution

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T2 - 2002 IEEE International Magnetics Conference, INTERMAG Europe 2002

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Ti grain cutting layer and Pt underlayer for CoCr based single magnetic layered perpendicular magnetic recording media

Abstract

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ASJC Scopus subject areas

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