Micromagnetic analysis to reduce adjacent track erasure field in planar write heads

Yasushi Kanai; Hideto Hosokai; Kazuya Koyama; Kiyoshi Yamakawa; Kazuetsu Yoshida; Simon J. Greaves; Hiroaki Muraoka

doi:10.1109/TMAG.2011.2155631

Micromagnetic analysis to reduce adjacent track erasure field in planar write heads

Yasushi Kanai, Hideto Hosokai, Kazuya Koyama, Kiyoshi Yamakawa, Kazuetsu Yoshida, Simon J. Greaves, Hiroaki Muraoka

Broadband Engineering Division

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

3 Citations (Scopus)

Abstract

Micromagnetic analysis was carried out to reduce the adjacent track erasure (ATE) field in planar type recording write heads. First, a quasi-static head field analysis showed that a three-step tapered pole had advantages over one-step and two-step poles. Next, dynamic micromagnetics proved that smaller models had higher recording fields and lower ATE fields compared with larger models. Finally, it was shown that the planar head had advantages over conventional, single-pole-type (SPT) heads in respect of its larger recording field, faster response to a high-frequency current and smaller ATE field.

Original language	English
Article number	6027693
Pages (from-to)	3399-3402
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	47
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2011.2155631
Publication status	Published - 2011 Oct

Keywords

Adjacent track erasure (ATE) field
micromagnetic simulations
perpendicular magnetic recording
write heads

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2011.2155631

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title = "Micromagnetic analysis to reduce adjacent track erasure field in planar write heads",

abstract = "Micromagnetic analysis was carried out to reduce the adjacent track erasure (ATE) field in planar type recording write heads. First, a quasi-static head field analysis showed that a three-step tapered pole had advantages over one-step and two-step poles. Next, dynamic micromagnetics proved that smaller models had higher recording fields and lower ATE fields compared with larger models. Finally, it was shown that the planar head had advantages over conventional, single-pole-type (SPT) heads in respect of its larger recording field, faster response to a high-frequency current and smaller ATE field.",

keywords = "Adjacent track erasure (ATE) field, micromagnetic simulations, perpendicular magnetic recording, write heads",

author = "Yasushi Kanai and Hideto Hosokai and Kazuya Koyama and Kiyoshi Yamakawa and Kazuetsu Yoshida and Greaves, {Simon J.} and Hiroaki Muraoka",

note = "Funding Information: The authors would like to acknowledge the use of LLG mi-cromagnetic software from Central Research Laboratory, Hi-tachi, Limited and the use of JMAG, FEM Software, from JRI Solutions, Ltd. This work was supported in part by a Grant in Aid from the Japan Society for the Promotion of Science (#21 560 374) and the Storage Research Consortium (SRC), Japan.",

year = "2011",

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doi = "10.1109/TMAG.2011.2155631",

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T1 - Micromagnetic analysis to reduce adjacent track erasure field in planar write heads

AU - Kanai, Yasushi

AU - Hosokai, Hideto

AU - Koyama, Kazuya

AU - Yamakawa, Kiyoshi

AU - Yoshida, Kazuetsu

AU - Greaves, Simon J.

AU - Muraoka, Hiroaki

N1 - Funding Information: The authors would like to acknowledge the use of LLG mi-cromagnetic software from Central Research Laboratory, Hi-tachi, Limited and the use of JMAG, FEM Software, from JRI Solutions, Ltd. This work was supported in part by a Grant in Aid from the Japan Society for the Promotion of Science (#21 560 374) and the Storage Research Consortium (SRC), Japan.

PY - 2011/10

Y1 - 2011/10

N2 - Micromagnetic analysis was carried out to reduce the adjacent track erasure (ATE) field in planar type recording write heads. First, a quasi-static head field analysis showed that a three-step tapered pole had advantages over one-step and two-step poles. Next, dynamic micromagnetics proved that smaller models had higher recording fields and lower ATE fields compared with larger models. Finally, it was shown that the planar head had advantages over conventional, single-pole-type (SPT) heads in respect of its larger recording field, faster response to a high-frequency current and smaller ATE field.

AB - Micromagnetic analysis was carried out to reduce the adjacent track erasure (ATE) field in planar type recording write heads. First, a quasi-static head field analysis showed that a three-step tapered pole had advantages over one-step and two-step poles. Next, dynamic micromagnetics proved that smaller models had higher recording fields and lower ATE fields compared with larger models. Finally, it was shown that the planar head had advantages over conventional, single-pole-type (SPT) heads in respect of its larger recording field, faster response to a high-frequency current and smaller ATE field.

KW - Adjacent track erasure (ATE) field

KW - micromagnetic simulations

KW - perpendicular magnetic recording

KW - write heads

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Micromagnetic analysis to reduce adjacent track erasure field in planar write heads

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Keywords

ASJC Scopus subject areas

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