Resolution improvement of transition width with shielded pole writer

Weixing Xia; Hajime Aoi; Hiroaki Muraoka; Yoshihisa Nakamura

doi:10.1109/TMAG.2004.832133

Resolution improvement of transition width with shielded pole writer

Weixing Xia, Hajime Aoi, Hiroaki Muraoka, Yoshihisa Nakamura

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The resolution improvement of isolated magnetization transition with shielded pole writer was investigated with a two-dimensional (2-D) finite-element method (FEM) calculation using a media model. Two kinds of single-pole type (SPT) head were used in the calculation. The medium coercivity was varied from 3000 Oe to 9000 Oe. The transition parameter πa was improved from 56.80 nm (Hc = 3000 Oe) to 7.14 nm (He = 9000 Oe) using the regular SPT head, however a significant reduction was achieved from 26.32 nm (Hc = 3000 Oe) to 5.26 nm (Hc = 9000 Oe) using the front yoke head with high gradient. The recording resolution can be improved with the front yoke head for a large range of media.

Original language	English
Pages (from-to)	2365-2367
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	40
Issue number	4 II
DOIs	https://doi.org/10.1109/TMAG.2004.832133
Publication status	Published - 2004 Jul

Keywords

Field gradient
Perpendicular magnetic recording
Recording resolution
Single-pole type (SPT) head

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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title = "Resolution improvement of transition width with shielded pole writer",

abstract = "The resolution improvement of isolated magnetization transition with shielded pole writer was investigated with a two-dimensional (2-D) finite-element method (FEM) calculation using a media model. Two kinds of single-pole type (SPT) head were used in the calculation. The medium coercivity was varied from 3000 Oe to 9000 Oe. The transition parameter πa was improved from 56.80 nm (Hc = 3000 Oe) to 7.14 nm (He = 9000 Oe) using the regular SPT head, however a significant reduction was achieved from 26.32 nm (Hc = 3000 Oe) to 5.26 nm (Hc = 9000 Oe) using the front yoke head with high gradient. The recording resolution can be improved with the front yoke head for a large range of media.",

keywords = "Field gradient, Perpendicular magnetic recording, Recording resolution, Single-pole type (SPT) head",

author = "Weixing Xia and Hajime Aoi and Hiroaki Muraoka and Yoshihisa Nakamura",

note = "Funding Information: Manuscript received October 16, 2003. This work was supported in part by the Tohoku University 21st Century COE Program and the IT-21 Program (RR2002) of MEXT, Japan.",

year = "2004",

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AU - Xia, Weixing

AU - Aoi, Hajime

AU - Muraoka, Hiroaki

AU - Nakamura, Yoshihisa

N1 - Funding Information: Manuscript received October 16, 2003. This work was supported in part by the Tohoku University 21st Century COE Program and the IT-21 Program (RR2002) of MEXT, Japan.

PY - 2004/7

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N2 - The resolution improvement of isolated magnetization transition with shielded pole writer was investigated with a two-dimensional (2-D) finite-element method (FEM) calculation using a media model. Two kinds of single-pole type (SPT) head were used in the calculation. The medium coercivity was varied from 3000 Oe to 9000 Oe. The transition parameter πa was improved from 56.80 nm (Hc = 3000 Oe) to 7.14 nm (He = 9000 Oe) using the regular SPT head, however a significant reduction was achieved from 26.32 nm (Hc = 3000 Oe) to 5.26 nm (Hc = 9000 Oe) using the front yoke head with high gradient. The recording resolution can be improved with the front yoke head for a large range of media.

AB - The resolution improvement of isolated magnetization transition with shielded pole writer was investigated with a two-dimensional (2-D) finite-element method (FEM) calculation using a media model. Two kinds of single-pole type (SPT) head were used in the calculation. The medium coercivity was varied from 3000 Oe to 9000 Oe. The transition parameter πa was improved from 56.80 nm (Hc = 3000 Oe) to 7.14 nm (He = 9000 Oe) using the regular SPT head, however a significant reduction was achieved from 26.32 nm (Hc = 3000 Oe) to 5.26 nm (Hc = 9000 Oe) using the front yoke head with high gradient. The recording resolution can be improved with the front yoke head for a large range of media.

KW - Field gradient

KW - Perpendicular magnetic recording

KW - Recording resolution

KW - Single-pole type (SPT) head

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