Magnetic properties and switching field control of antiferromagnetically coupled recording media

S. N. Piramanayagam; J. P. Wang; X. Shi; S. I. Pang; C. K. Pock; Z. S. Shan; T. C. Chong

doi:10.1109/20.950864

Magnetic properties and switching field control of antiferromagnetically coupled recording media

S. N. Piramanayagam, J. P. Wang, X. Shi, S. I. Pang, C. K. Pock, Z. S. Shan, T. C. Chong

Electrical and Computer Engineering

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

24 Scopus citations

Abstract

Recently proposed antiferromagnetic-coupled (AFC) media is studied in detail. The parameters, which control the switching field of the stabilizing layer and hence, the M_rδ reduction are understood by theory and experiment. It was observed that the switching field of the stabilizing layer could be controlled by experimental parameters to be on either side of remanence. M_rδ reduction could be achieved by a reduction of anisotropy constant, thickness or magnetization of the stabilizing layer. The coercivity and thermal stability of the AFC media is larger than that of a single magnetic layer.

Original language	English (US)
Pages (from-to)	1438-1440
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	37
Issue number	4 I
DOIs	https://doi.org/10.1109/20.950864
State	Published - Jul 2001
Event	8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States Duration: Jan 7 2001 → Jan 11 2001

Bibliographical note

Funding Information:
Manuscript received October 13, 2000. This work was supported in part by Hoya Magnetics, Singapore. The authors are with Data Storage Institute, Singapore - 117608 (e-mail: [email protected];{jpwang; xshi; siewit; zsshan}@dsi.nus.edu.sg). Publisher Item Identifier S 0018-9464(01)05630-8.

Keywords

Anisotropy
Antiferromagnetic coupling
Magnetic recording
Recording media
Thermal stability

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10.1109/20.950864

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title = "Magnetic properties and switching field control of antiferromagnetically coupled recording media",

abstract = "Recently proposed antiferromagnetic-coupled (AFC) media is studied in detail. The parameters, which control the switching field of the stabilizing layer and hence, the Mrδ reduction are understood by theory and experiment. It was observed that the switching field of the stabilizing layer could be controlled by experimental parameters to be on either side of remanence. Mrδ reduction could be achieved by a reduction of anisotropy constant, thickness or magnetization of the stabilizing layer. The coercivity and thermal stability of the AFC media is larger than that of a single magnetic layer.",

keywords = "Anisotropy, Antiferromagnetic coupling, Magnetic recording, Recording media, Thermal stability",

author = "Piramanayagam, {S. N.} and Wang, {J. P.} and X. Shi and Pang, {S. I.} and Pock, {C. K.} and Shan, {Z. S.} and Chong, {T. C.}",

note = "Funding Information: Manuscript received October 13, 2000. This work was supported in part by Hoya Magnetics, Singapore. The authors are with Data Storage Institute, Singapore - 117608 (e-mail: [email protected];{jpwang; xshi; siewit; zsshan}@dsi.nus.edu.sg). Publisher Item Identifier S 0018-9464(01)05630-8.; 8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) ; Conference date: 07-01-2001 Through 11-01-2001",

year = "2001",

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TY - JOUR

T1 - Magnetic properties and switching field control of antiferromagnetically coupled recording media

AU - Piramanayagam, S. N.

AU - Wang, J. P.

AU - Shi, X.

AU - Pang, S. I.

AU - Pock, C. K.

AU - Shan, Z. S.

AU - Chong, T. C.

N1 - Funding Information: Manuscript received October 13, 2000. This work was supported in part by Hoya Magnetics, Singapore. The authors are with Data Storage Institute, Singapore - 117608 (e-mail: [email protected];{jpwang; xshi; siewit; zsshan}@dsi.nus.edu.sg). Publisher Item Identifier S 0018-9464(01)05630-8.

PY - 2001/7

Y1 - 2001/7

N2 - Recently proposed antiferromagnetic-coupled (AFC) media is studied in detail. The parameters, which control the switching field of the stabilizing layer and hence, the Mrδ reduction are understood by theory and experiment. It was observed that the switching field of the stabilizing layer could be controlled by experimental parameters to be on either side of remanence. Mrδ reduction could be achieved by a reduction of anisotropy constant, thickness or magnetization of the stabilizing layer. The coercivity and thermal stability of the AFC media is larger than that of a single magnetic layer.

AB - Recently proposed antiferromagnetic-coupled (AFC) media is studied in detail. The parameters, which control the switching field of the stabilizing layer and hence, the Mrδ reduction are understood by theory and experiment. It was observed that the switching field of the stabilizing layer could be controlled by experimental parameters to be on either side of remanence. Mrδ reduction could be achieved by a reduction of anisotropy constant, thickness or magnetization of the stabilizing layer. The coercivity and thermal stability of the AFC media is larger than that of a single magnetic layer.

KW - Anisotropy

KW - Antiferromagnetic coupling

KW - Magnetic recording

KW - Recording media

KW - Thermal stability

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U2 - 10.1109/20.950864

DO - 10.1109/20.950864

M3 - Conference article

AN - SCOPUS:0035386154

SN - 0018-9464

VL - 37

SP - 1438

EP - 1440

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 4 I

T2 - 8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag)

Y2 - 7 January 2001 through 11 January 2001

ER -

Magnetic properties and switching field control of antiferromagnetically coupled recording media

Abstract

Bibliographical note

Keywords

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