NDLI: Return Field-Induced Partial Erasure in Perpendicular Recording Using Trailing-Edge Shielded Writers

Content Provider	IEEE Xplore Digital Library
Author	Bai, D.Z. Peng Luo Torabi, A. Terrill, D. James Wang Stoev, K. Liu, F. Moneck, M. Yuhui Tang Jian-Gang Zhu
Copyright Year	1965
Abstract	Return field-induced partial erasure (RFPE) in trailing-edge shielded perpendicular writers has been studied, both by modeling and by experiments. For a given head-media combination, the return field underneath the trailing shield increases with increasing write current. Once exceeding a certain threshold, it will cause partial erasure of the bits that have just been written by the main pole. Recording performance, such as reverse overwrite, spectral signal-to-noise ratio, and bit-error rate are all found degraded at high write currents, due to RFPE. Design optimization of both head and media together is needed, in order to maximize the advantage of a trailing-edge shielded pole head and minimize the impact of RFPE
Sponsorship	IEEE Magnetics Society
Starting Page	600
Ending Page	604
Page Count	5
File Size	1389933
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	Perpendicular magnetic recording Magnetic heads Degradation Magnetization Digital recording Data storage systems Signal to noise ratio Bit error rate Design optimization Finite element methods shielded pole head Partial erasure perpendicular recording return field
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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Return Field Induced Partial Erasure in Trailing Edge Shielded Perpendicular Writers

Adjacent and Far Track Erasure Dependence on Media Soft Underlayer Permeability in Shielded Head Recording

Writer pole tip remanence in perpendicular recording

Distribution of slanted write field for perpendicular recording heads with shielded pole

Influence of Negative Field on Media Noise in Combinations of Capped Medium and Shielded Pole Heads

A Study of Media Dependence of Trailing Shield Perpendicular Write Head

Distribution of slanted write field for perpendicular recording heads with shielded pole

Relationship between head design, pole-tip magnetization, head field, and media magnetization in longitudinal recording

Side-Track Erasure Processes in Perpendicular Recording

Return Field-Induced Partial Erasure in Perpendicular Recording Using Trailing-Edge Shielded Writers

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Return Field Induced Partial Erasure in Trailing Edge Shielded Perpendicular Writers

Adjacent and Far Track Erasure Dependence on Media Soft Underlayer Permeability in Shielded Head Recording

Writer pole tip remanence in perpendicular recording

Distribution of slanted write field for perpendicular recording heads with shielded pole

Influence of Negative Field on Media Noise in Combinations of Capped Medium and Shielded Pole Heads

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Distribution of slanted write field for perpendicular recording heads with shielded pole

Relationship between head design, pole-tip magnetization, head field, and media magnetization in longitudinal recording

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Return Field-Induced Partial Erasure in Perpendicular Recording Using Trailing-Edge Shielded Writers