Finite-Element Model Analysis of Single-Pole-Type Head for 1 Tbit/in 2

Yasushi Kanai; Ryo Matsubara; Hideaki Watanabe; Hiroaki Muraoka; Yoshihisa Nakamura

doi:10.1109/TMAG.2003.815464

Finite-Element Model Analysis of Single-Pole-Type Head for 1 Tbit/in ²

Yasushi Kanai, Ryo Matsubara, Hideaki Watanabe, Hiroaki Muraoka, Yoshihisa Nakamura

Broadband Engineering Division

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

10 Citations (Scopus)

Abstract

A three-dimensional (3-D) FEM simulation of a 1 Tbit/in² head/medium model has been carried out. Three new structures, side shields, a tapered main pole, and a tapered return path for the head have been introduced in order to produce a large recording field, a small stray field to the adjacent tracks, and a skew-effect-free field distribution, that are all indispensable for higher linear and higher track density recording. The proposed head structure gives sufficient head field strength and gradient for 1 Tbit/in² recording as described in previous literature, as well as a narrow pulse width.

Original language	English
Pages (from-to)	2405-2407
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	39
Issue number	5 II
DOIs	https://doi.org/10.1109/TMAG.2003.815464
Publication status	Published - 2003 Sep

Keywords

Finite-element methods
Perpendicular magnetic recording
Side shields
Single-pole-type head
Tapered main pole
Tapered return path

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/TMAG.2003.815464

Cite this

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title = "Finite-Element Model Analysis of Single-Pole-Type Head for 1 Tbit/in 2",

abstract = "A three-dimensional (3-D) FEM simulation of a 1 Tbit/in2 head/medium model has been carried out. Three new structures, side shields, a tapered main pole, and a tapered return path for the head have been introduced in order to produce a large recording field, a small stray field to the adjacent tracks, and a skew-effect-free field distribution, that are all indispensable for higher linear and higher track density recording. The proposed head structure gives sufficient head field strength and gradient for 1 Tbit/in2 recording as described in previous literature, as well as a narrow pulse width.",

keywords = "Finite-element methods, Perpendicular magnetic recording, Side shields, Single-pole-type head, Tapered main pole, Tapered return path",

author = "Yasushi Kanai and Ryo Matsubara and Hideaki Watanabe and Hiroaki Muraoka and Yoshihisa Nakamura",

note = "Funding Information: Manuscript received January 6, 2003; revised February 1, 2003. This work was supported in part under Grant 12 650 351 from the Japan Society for the Promotion of Science and the Storage Research Consortium (SRC), Japan. Y. Kanai, R. Matsubara, and H. Watanabe are with the Department of Information and Electronics Engineering, Faculty of Engineering, Niigata Institute of Technology, Kashiwazaki 945-1195, Japan (e-mail: kanai@iee.niit.ac.jp). H. Muraoka and Y. Nakamura are with RIEC, Tohoku University, Sendai 980-8577, Japan. Digital Object Identifier 10.1109/TMAG.2003.815464",

year = "2003",

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AU - Kanai, Yasushi

AU - Matsubara, Ryo

AU - Watanabe, Hideaki

AU - Muraoka, Hiroaki

AU - Nakamura, Yoshihisa

N1 - Funding Information: Manuscript received January 6, 2003; revised February 1, 2003. This work was supported in part under Grant 12 650 351 from the Japan Society for the Promotion of Science and the Storage Research Consortium (SRC), Japan. Y. Kanai, R. Matsubara, and H. Watanabe are with the Department of Information and Electronics Engineering, Faculty of Engineering, Niigata Institute of Technology, Kashiwazaki 945-1195, Japan (e-mail: kanai@iee.niit.ac.jp). H. Muraoka and Y. Nakamura are with RIEC, Tohoku University, Sendai 980-8577, Japan. Digital Object Identifier 10.1109/TMAG.2003.815464

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AB - A three-dimensional (3-D) FEM simulation of a 1 Tbit/in2 head/medium model has been carried out. Three new structures, side shields, a tapered main pole, and a tapered return path for the head have been introduced in order to produce a large recording field, a small stray field to the adjacent tracks, and a skew-effect-free field distribution, that are all indispensable for higher linear and higher track density recording. The proposed head structure gives sufficient head field strength and gradient for 1 Tbit/in2 recording as described in previous literature, as well as a narrow pulse width.

KW - Finite-element methods

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KW - Side shields

KW - Single-pole-type head

KW - Tapered main pole

KW - Tapered return path

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