Side track erasure of stitched-pole magnetic recording heads

Davide Guarisco; Monica Lin Li; G. Herbert Lin; Christian H. Back; Yves Acremann

doi:10.1109/20.908494

Side track erasure of stitched-pole magnetic recording heads

Davide Guarisco, Monica Lin Li, G. Herbert Lin, Christian H. Back, Yves Acremann

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

We studied the side track erasure of a stitched-pole head with writer pole P3 not recessed from the air-bearing surface and compared it with conventional designs. A method is presented to determine the degree of side track erasure. We found that side track erasure increases with increasing linear density, medium M_rδ, and DC erase current. This is consistent with the erasure being caused by the stray field generated at the corners of the P2/P3 interface in combination with the demagnetization field present in the transitions. The high degree of magnetization of P3 in the stitched-pole head has been confirmed by magneto-optic Kerr microscopy.

Original language	English
Pages (from-to)	2527-2529
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	36
Issue number	5 I
DOIs	https://doi.org/10.1109/20.908494
State	Published - Sep 2000
Externally published	Yes
Event	2000 International Magnetics Conference (INTERMAG 2000) - Toronto, Ont, Canada Duration: 9 Apr 2000 → 12 Apr 2000

Keywords

Longitudinal recording
Magneto-optic Kerr effect
Test and characterization

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10.1109/20.908494

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title = "Side track erasure of stitched-pole magnetic recording heads",

abstract = "We studied the side track erasure of a stitched-pole head with writer pole P3 not recessed from the air-bearing surface and compared it with conventional designs. A method is presented to determine the degree of side track erasure. We found that side track erasure increases with increasing linear density, medium Mrδ, and DC erase current. This is consistent with the erasure being caused by the stray field generated at the corners of the P2/P3 interface in combination with the demagnetization field present in the transitions. The high degree of magnetization of P3 in the stitched-pole head has been confirmed by magneto-optic Kerr microscopy.",

keywords = "Longitudinal recording, Magneto-optic Kerr effect, Test and characterization",

author = "Davide Guarisco and Li, {Monica Lin} and Lin, {G. Herbert} and Back, {Christian H.} and Yves Acremann",

year = "2000",

month = sep,

doi = "10.1109/20.908494",

language = "English",

volume = "36",

pages = "2527--2529",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

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

number = "5 I",

note = "2000 International Magnetics Conference (INTERMAG 2000) ; Conference date: 09-04-2000 Through 12-04-2000",

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TY - JOUR

T1 - Side track erasure of stitched-pole magnetic recording heads

AU - Guarisco, Davide

AU - Li, Monica Lin

AU - Lin, G. Herbert

AU - Back, Christian H.

AU - Acremann, Yves

PY - 2000/9

Y1 - 2000/9

N2 - We studied the side track erasure of a stitched-pole head with writer pole P3 not recessed from the air-bearing surface and compared it with conventional designs. A method is presented to determine the degree of side track erasure. We found that side track erasure increases with increasing linear density, medium Mrδ, and DC erase current. This is consistent with the erasure being caused by the stray field generated at the corners of the P2/P3 interface in combination with the demagnetization field present in the transitions. The high degree of magnetization of P3 in the stitched-pole head has been confirmed by magneto-optic Kerr microscopy.

AB - We studied the side track erasure of a stitched-pole head with writer pole P3 not recessed from the air-bearing surface and compared it with conventional designs. A method is presented to determine the degree of side track erasure. We found that side track erasure increases with increasing linear density, medium Mrδ, and DC erase current. This is consistent with the erasure being caused by the stray field generated at the corners of the P2/P3 interface in combination with the demagnetization field present in the transitions. The high degree of magnetization of P3 in the stitched-pole head has been confirmed by magneto-optic Kerr microscopy.

KW - Longitudinal recording

KW - Magneto-optic Kerr effect

KW - Test and characterization

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U2 - 10.1109/20.908494

DO - 10.1109/20.908494

M3 - Conference article

AN - SCOPUS:0034260768

SN - 0018-9464

VL - 36

SP - 2527

EP - 2529

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 5 I

T2 - 2000 International Magnetics Conference (INTERMAG 2000)

Y2 - 9 April 2000 through 12 April 2000

ER -

Side track erasure of stitched-pole magnetic recording heads

Abstract

Keywords

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