High performance CoPtCrO single layered perpendicular media with no recording demagnetization

Soichi Oikawa; Akihiko Takeo; Takashi Hikosaka; Yoichiro Tanaka

doi:10.1109/20.908443

High performance CoPtCrO single layered perpendicular media with no recording demagnetization

Soichi Oikawa, Akihiko Takeo, Takashi Hikosaka, Yoichiro Tanaka

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

72 Citations (Scopus)

Abstract

High coercivity CoPtCrO single layered perpendicular medium has been newly developed in order to solve the recording demagnetization problem, and exhibited the excellent recording characteristics with ring type head; the areal recording density being higher than 11 Gbit/inch ². The high Pt content and the segregation structure with thick oxygen-rich boundaries led this perpendicular medium to high coercivity, steep hysteresis slope at Hc, and high squareness at the same time. These features were found to be primary factors for both high SNR and suppressed recording demagnetization.

Original language	English
Pages (from-to)	2393-2395
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	36
Issue number	5 I
DOIs	https://doi.org/10.1109/20.908443
Publication status	Published - 2000 Sep 1
Externally published	Yes
Event	2000 International Magnetics Conference (INTERMAG 2000) - Toronto, Ont, Canada Duration: 2000 Apr 9 → 2000 Apr 12

Keywords

CoPt
Oxygen segregation
Perpendicular media
Recording demagnetization

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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title = "High performance CoPtCrO single layered perpendicular media with no recording demagnetization",

abstract = "High coercivity CoPtCrO single layered perpendicular medium has been newly developed in order to solve the recording demagnetization problem, and exhibited the excellent recording characteristics with ring type head; the areal recording density being higher than 11 Gbit/inch 2. The high Pt content and the segregation structure with thick oxygen-rich boundaries led this perpendicular medium to high coercivity, steep hysteresis slope at Hc, and high squareness at the same time. These features were found to be primary factors for both high SNR and suppressed recording demagnetization.",

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author = "Soichi Oikawa and Akihiko Takeo and Takashi Hikosaka and Yoichiro Tanaka",

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AU - Oikawa, Soichi

AU - Takeo, Akihiko

AU - Hikosaka, Takashi

AU - Tanaka, Yoichiro

PY - 2000/9/1

Y1 - 2000/9/1

N2 - High coercivity CoPtCrO single layered perpendicular medium has been newly developed in order to solve the recording demagnetization problem, and exhibited the excellent recording characteristics with ring type head; the areal recording density being higher than 11 Gbit/inch 2. The high Pt content and the segregation structure with thick oxygen-rich boundaries led this perpendicular medium to high coercivity, steep hysteresis slope at Hc, and high squareness at the same time. These features were found to be primary factors for both high SNR and suppressed recording demagnetization.

AB - High coercivity CoPtCrO single layered perpendicular medium has been newly developed in order to solve the recording demagnetization problem, and exhibited the excellent recording characteristics with ring type head; the areal recording density being higher than 11 Gbit/inch 2. The high Pt content and the segregation structure with thick oxygen-rich boundaries led this perpendicular medium to high coercivity, steep hysteresis slope at Hc, and high squareness at the same time. These features were found to be primary factors for both high SNR and suppressed recording demagnetization.

KW - CoPt

KW - Oxygen segregation

KW - Perpendicular media

KW - Recording demagnetization

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