High-Field Gradient Cusp Field Single-Pole Writing Head with Front Return Yoke

Kazuyuki Ise; Kiyoshi Yamakawa; Naoki Honda; Kazuhiro Ouchi; Hiroaki Muraoka; Yoshihisa Nakamura

doi:10.1109/TMAG.2003.815454

High-Field Gradient Cusp Field Single-Pole Writing Head with Front Return Yoke

Kazuyuki Ise, Kiyoshi Yamakawa, Naoki Honda, Kazuhiro Ouchi, Hiroaki Muraoka, Yoshihisa Nakamura

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

9 Citations (Scopus)

Abstract

The relationship between single-pole head design and recording resolution was investigated in perpendicular recording. It has been found from the computer simulation that it is useful to make a narrow separation between the main pole and the return yoke at the trailing side of the cusp-field single-pole-type (CF-SPT) head. A new head structure with an additive return yoke on the head surface was proposed to realize the aforementioned structure. The new head was fabricated by depositing the soft magnetic thin film onto the air-bearing surface of the CF-SPT head, followed by slitting the film along the main-pole edges by a focused-ion-beam system. As a result, the new head that modified a pole configuration improved D₅₀ value about 25 kFCI compared with the original CF-SPT head.

Original language	English
Pages (from-to)	2374-2376
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	39
Issue number	5 II
DOIs	https://doi.org/10.1109/TMAG.2003.815454
Publication status	Published - 2003 Sep
Externally published	Yes

Keywords

Head field gradient
Perpendicular recording
Single-pole (SPT) head

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2003.815454

Cite this

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title = "High-Field Gradient Cusp Field Single-Pole Writing Head with Front Return Yoke",

abstract = "The relationship between single-pole head design and recording resolution was investigated in perpendicular recording. It has been found from the computer simulation that it is useful to make a narrow separation between the main pole and the return yoke at the trailing side of the cusp-field single-pole-type (CF-SPT) head. A new head structure with an additive return yoke on the head surface was proposed to realize the aforementioned structure. The new head was fabricated by depositing the soft magnetic thin film onto the air-bearing surface of the CF-SPT head, followed by slitting the film along the main-pole edges by a focused-ion-beam system. As a result, the new head that modified a pole configuration improved D50 value about 25 kFCI compared with the original CF-SPT head.",

keywords = "Head field gradient, Perpendicular recording, Single-pole (SPT) head",

author = "Kazuyuki Ise and Kiyoshi Yamakawa and Naoki Honda and Kazuhiro Ouchi and Hiroaki Muraoka and Yoshihisa Nakamura",

note = "Funding Information: Manuscript received January 2, 2003. This work was supported in part by the Akita Prefecture Collaboration of Regional Entities for the Advancement of Technological Excellence, JST. K. Ise, K. Yamakawa, N. Honda, and K. Ouchi are with Akita Research Institute of Advanced Technology, Akita 010-1623, Japan (e-mail: ise@ait.pref.akita.jp). H. Muraoka and Y. Nakamura are with the Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577, Japan. Digital Object Identifier 10.1109/TMAG.2003.815454 Fig. 1. New CF-SPT head structure in downtrack direction. (a) 3-D calculation model for new CF-SPT head. (b) Schematic structure of prepared new CF-SPT head. The front return yoke is also formed in cross-track direction with same separation.",

year = "2003",

month = sep,

doi = "10.1109/TMAG.2003.815454",

language = "English",

volume = "39",

pages = "2374--2376",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "5 II",

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T1 - High-Field Gradient Cusp Field Single-Pole Writing Head with Front Return Yoke

AU - Ise, Kazuyuki

AU - Yamakawa, Kiyoshi

AU - Honda, Naoki

AU - Ouchi, Kazuhiro

AU - Muraoka, Hiroaki

AU - Nakamura, Yoshihisa

N1 - Funding Information: Manuscript received January 2, 2003. This work was supported in part by the Akita Prefecture Collaboration of Regional Entities for the Advancement of Technological Excellence, JST. K. Ise, K. Yamakawa, N. Honda, and K. Ouchi are with Akita Research Institute of Advanced Technology, Akita 010-1623, Japan (e-mail: ise@ait.pref.akita.jp). H. Muraoka and Y. Nakamura are with the Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577, Japan. Digital Object Identifier 10.1109/TMAG.2003.815454 Fig. 1. New CF-SPT head structure in downtrack direction. (a) 3-D calculation model for new CF-SPT head. (b) Schematic structure of prepared new CF-SPT head. The front return yoke is also formed in cross-track direction with same separation.

PY - 2003/9

Y1 - 2003/9

N2 - The relationship between single-pole head design and recording resolution was investigated in perpendicular recording. It has been found from the computer simulation that it is useful to make a narrow separation between the main pole and the return yoke at the trailing side of the cusp-field single-pole-type (CF-SPT) head. A new head structure with an additive return yoke on the head surface was proposed to realize the aforementioned structure. The new head was fabricated by depositing the soft magnetic thin film onto the air-bearing surface of the CF-SPT head, followed by slitting the film along the main-pole edges by a focused-ion-beam system. As a result, the new head that modified a pole configuration improved D50 value about 25 kFCI compared with the original CF-SPT head.

AB - The relationship between single-pole head design and recording resolution was investigated in perpendicular recording. It has been found from the computer simulation that it is useful to make a narrow separation between the main pole and the return yoke at the trailing side of the cusp-field single-pole-type (CF-SPT) head. A new head structure with an additive return yoke on the head surface was proposed to realize the aforementioned structure. The new head was fabricated by depositing the soft magnetic thin film onto the air-bearing surface of the CF-SPT head, followed by slitting the film along the main-pole edges by a focused-ion-beam system. As a result, the new head that modified a pole configuration improved D50 value about 25 kFCI compared with the original CF-SPT head.

KW - Head field gradient

KW - Perpendicular recording

KW - Single-pole (SPT) head

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High-Field Gradient Cusp Field Single-Pole Writing Head with Front Return Yoke

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Keywords

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