NDLI: Relationship Between Head Design and Media Remanent Magnetization in Perpendicular Magnetic Recording

Content Provider	IEEE Xplore Digital Library
Author	Takano, K. Sakai, M. Smyth, J. Dovek, M.
Copyright Year	1965
Abstract	This paper presents micromagnetic modeling results in a perpendicular magnetic recording, which consists of a single-pole head and double-layered media. To know the inplane head field contribution, the relationship between applied angular field and media remanence is studied, and we propose a perpendicular corresponding field for the head field assessment, which can explain media remanence as well such as the main-pole footprint on the media. The shielded-pole/single-coil head shows the best signal-to-noise ratio but the overwrite performance is somewhat poorer than monopole heads, with a large positive to negative head field, which implies a large field gradient. Although the shielded-pole head has smaller erase bands with straight transitions, it can cause trailing-shield-related erasure by the negative field under the high write current input in the single-coil design
Sponsorship	IEEE Magnetics Society
Starting Page	594
Ending Page	599
Page Count	6
File Size	3100090
File Format	PDF
ISSN	00189464
Volume Number	43
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic heads Perpendicular magnetic recording Coils Micromagnetics Remanence Saturation magnetization Signal to noise ratio Magnetic recording Land mobile radio Magnetic flux perpendicular magnetic recording Magnetic recording head micromagnetic modeling parallel finite-element method
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Relationship Between Head Design and Media Remanent Magnetization in Perpendicular Magnetic Recording

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