KR930006655A - 강 자성막 - Google Patents

강 자성막 Download PDF

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Publication number
KR930006655A
KR930006655A KR1019920017842A KR920017842A KR930006655A KR 930006655 A KR930006655 A KR 930006655A KR 1019920017842 A KR1019920017842 A KR 1019920017842A KR 920017842 A KR920017842 A KR 920017842A KR 930006655 A KR930006655 A KR 930006655A
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KR
South Korea
Prior art keywords
group
content
magnetic film
transition metals
alloy
Prior art date
Application number
KR1019920017842A
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English (en)
Other versions
KR960002611B1 (ko
Inventor
히토시 이와시키
유이치 오사와
레이코 곤도
Original Assignee
사토 후미오
가부시키가이샤 도시바
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Publication date
Application filed by 사토 후미오, 가부시키가이샤 도시바 filed Critical 사토 후미오
Publication of KR930006655A publication Critical patent/KR930006655A/ko
Application granted granted Critical
Publication of KR960002611B1 publication Critical patent/KR960002611B1/ko

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/12—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys
    • H01F10/16—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing cobalt
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/1875—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers
    • G11B5/1877—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/1875—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers
    • G11B5/1877—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film
    • G11B5/1878—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film disposed immediately adjacent to the transducing gap, e.g. "Metal-In-Gap" structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/26—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers
    • H01F10/265—Magnetic multilayers non exchange-coupled

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Thin Magnetic Films (AREA)
  • Magnetic Heads (AREA)

Abstract

본 발명은 고 Bs 양호한 내열성을 가지는 연자성이고 많은 제조이익, 고저항율 및 고내식성을 동시에 만족하고 자기헤드에 적합한 강자성막을 제공하는데 있다.
CoFe기 합금에 Al, Ta, Nb, Zr, Hf, Ti, Mo, W로 이루어진 천이 금속의 군에서 선택된 최소한 l종의 원자를 첨가해 구성한다.
또한 Co계 질화합금에 Ta, Nb, Zr, Hf, Ti, Cr, Mo, W로 이루어진 천이 금속의 군에서 선택된 최소한 1종의 윈자 및 Al를 첨가해 구성하는 것을 특징으로 한다.

Description

강 자성막
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제18도는 수평표면기록의 하드디스크에 대응한 박막자기헤드의 단면도,
제20도는 metal in gab 헤드의 단면도,
제21도는 라미네이트형 헤드의 사시도.

Claims (4)

  1. 일반시 CoxFeyTz(단 T는 Al, Ta, Ti, Zr, Nb, Hf, Mo, W로 이루어진 군에서 선택된 적어도 1종의 원자이고, x, y, z는 각각 조성비를 at%로 나타내고, 73 ＜ x＜ 94, 5＜ y ≤ 15, 1＜ z ＜ 12, x+y+z=100)로 나타낸 합금으로 이루어진 것을 특징으로 하는 강자성막.
  2. 일반식 (MaTb)xNy(단 M은 C0 또는 Co 및 Fe이고, T는 Ta, Nb, Zr, Hf, Ti, Cr, Mo, W로 이루어진 천이금속의 군에서 선택된 적어도 1종의 원자 및 Al, N은 질소이고, a, b, x, y는 각각 조성비를 at%로 나타내고, 85 ＜ a ＜94, 4 ＜ b ＜ 15, a+b=100, 80 ＜ x ＜ 98, 2 ＜ y ＜ 20, x+y=100, M중의 Fe함유율은 0 ≤ Fe ≤ 15at%, T중의 Al의 함유량은 4 ＜ Al ≤ 50at%)로 나타낸 합금으로 이루어지는 것을 특징으로 하는 강자성막.
  3. 일반식 (MaTb)xNy(단 M은 Co 또는 Co 및 Fe이고, T는 Ta 또는 Nb로 이루어진 적어도 1종의 원자이고, N은 질소이고, a, b, x, y는 각각 조성비를 at%로 나타내고, 85 < a <95, 5 <b <15, a+b=100, 82 <x <97.5, 2.5 <y <18, x+y=100)로 나타낸 합금으로 이루어진 자성막에 있어서, M에 있어서, Fe의 함유율은 2.5 ≤Fe ≤ 12.5at%인 것을 특징으로 하는 강자성막.
  4. 제3항의 자성막에 Pd 또는 Re중에서 선택된 최소한 1중의 원자 함유율이 15at% 미만인 것을 특징으로 하는 강자성막.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920017842A 1991-09-30 1992-09-29 강 자성막 KR960002611B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP91-250674 1991-09-30
JP25067491 1991-09-30
JP25244891 1991-09-30
JP91-252448 1991-09-30

Publications (2)

Publication Number Publication Date
KR930006655A true KR930006655A (ko) 1993-04-21
KR960002611B1 KR960002611B1 (ko) 1996-02-23

Family

ID=26539860

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920017842A KR960002611B1 (ko) 1991-09-30 1992-09-29 강 자성막

Country Status (2)

Country Link
US (2) US5484491A (ko)
KR (1) KR960002611B1 (ko)

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US5931032A (en) 1998-04-16 1999-08-03 Gregory; Edwin H. Cutter and blow resistant lock
US5780176A (en) * 1992-10-30 1998-07-14 Kabushiki Kaisha Toshiba Magnetoresistance effect element
JP4142753B2 (ja) 1996-12-26 2008-09-03 株式会社東芝 スパッタターゲット、スパッタ装置、半導体装置およびその製造方法
US6195240B1 (en) 1998-07-31 2001-02-27 International Business Machines Corporation Spin valve head with diffusion barrier
US6072671A (en) * 1998-07-31 2000-06-06 International Business Machines Corporation Write head with high thermal stability material
US6201671B1 (en) * 1998-12-04 2001-03-13 International Business Machines Corporation Seed layer for a nickel oxide pinning layer for increasing the magnetoresistance of a spin valve sensor
US6327122B1 (en) 1998-12-04 2001-12-04 International Business Machines Corporation Spin valve sensor having antiparallel (AP) pinned layer with high resistance and low coercivity
WO2001059768A2 (en) * 1999-10-05 2001-08-16 Seagate Technology Llc High data rate writer poles
US6855240B2 (en) * 2000-08-09 2005-02-15 Hitachi Global Storage Technologies Netherlands B.V. CoFe alloy film and process of making same
WO2004001779A1 (en) * 2002-06-21 2003-12-31 Seagate Technology Llc Method of producing nife alloy films having magnetic anisotropy and magnetic storage media including such films
JP2005025890A (ja) * 2003-07-04 2005-01-27 Fujitsu Ltd 磁気ヘッド用磁性膜
JP2007088415A (ja) * 2005-08-25 2007-04-05 Fujitsu Ltd 磁気抵抗効果素子、磁気ヘッド、磁気記憶装置、および磁気メモリ装置
US20070098977A1 (en) * 2005-10-27 2007-05-03 General Electric Company Soft magnetic materials and methods of making
JP2007273504A (ja) * 2006-03-30 2007-10-18 Fujitsu Ltd 磁気抵抗効果素子、磁気ヘッド、磁気記録装置、磁気ランダムアクセスメモリ
JP4331182B2 (ja) * 2006-04-14 2009-09-16 山陽特殊製鋼株式会社 軟磁性ターゲット材
JP5037036B2 (ja) * 2006-05-02 2012-09-26 山陽特殊製鋼株式会社 ＦｅＣｏ系ターゲット材
JP2008121071A (ja) * 2006-11-13 2008-05-29 Sanyo Special Steel Co Ltd 軟磁性ＦｅＣｏ系ターゲット材
JP5111835B2 (ja) * 2006-11-17 2013-01-09 山陽特殊製鋼株式会社 （ＣｏＦｅ）ＺｒＮｂ／Ｔａ／Ｈｆ系ターゲット材およびその製造方法
JP5253781B2 (ja) * 2007-09-18 2013-07-31 山陽特殊製鋼株式会社 垂直磁気記録媒体における軟磁性膜層用合金ターゲット材
US8611055B1 (en) 2009-07-31 2013-12-17 Western Digital (Fremont), Llc Magnetic etch-stop layer for magnetoresistive read heads
US20160020011A2 (en) * 2012-09-28 2016-01-21 Seagate Technology Llc Methods of forming magnetic materials and articles formed thereby
CN102969835B (zh) * 2012-12-14 2015-02-25 哈尔滨电气动力装备有限公司 二代加核电厂主冷却剂泵电动机
US9914250B2 (en) * 2012-12-21 2018-03-13 Apple Inc. Retention of magnetic properties
EP3641057B1 (en) * 2017-06-13 2024-02-14 Proterial, Ltd. Coil device and antenna
CN113096914B (zh) * 2021-03-18 2023-08-01 钢铁研究总院 一种向高温热源施加磁场的装置和方法

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Also Published As

Publication number Publication date
US5587026A (en) 1996-12-24
US5484491A (en) 1996-01-16
KR960002611B1 (ko) 1996-02-23

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