DE69428227D1 - Weichmagnetischer Mehrschichtfilm für einen Magnetkopf - Google Patents
Weichmagnetischer Mehrschichtfilm für einen MagnetkopfInfo
- Publication number
- DE69428227D1 DE69428227D1 DE69428227T DE69428227T DE69428227D1 DE 69428227 D1 DE69428227 D1 DE 69428227D1 DE 69428227 T DE69428227 T DE 69428227T DE 69428227 T DE69428227 T DE 69428227T DE 69428227 D1 DE69428227 D1 DE 69428227D1
- Authority
- DE
- Germany
- Prior art keywords
- multilayer film
- magnetic
- magnetic head
- soft magnetic
- soft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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
- G11B5/147—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- 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
-
- 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
- G11B5/21—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being of ferrous sheet metal or other magnetic layers
-
- 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
- H01F10/14—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing iron or nickel
- H01F10/147—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being metals or alloys containing iron or nickel with lattice under strain, e.g. expanded by interstitial nitrogen
-
- 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
- H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
- H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
-
- 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
- H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
- H01F10/324—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer
- H01F10/3254—Exchange coupling of magnetic film pairs via a very thin non-magnetic spacer, e.g. by exchange with conduction electrons of the spacer the spacer being semiconducting or insulating, e.g. for spin tunnel junction [STJ]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
- Thin Magnetic Films (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7320593 | 1993-03-31 | ||
JP5250475A JPH06338410A (ja) | 1993-03-31 | 1993-10-06 | 軟磁性多層膜と磁気ヘッド |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69428227D1 true DE69428227D1 (de) | 2001-10-18 |
DE69428227T2 DE69428227T2 (de) | 2002-06-27 |
Family
ID=26414355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69428227T Expired - Fee Related DE69428227T2 (de) | 1993-03-31 | 1994-03-31 | Weichmagnetischer Mehrschichtfilm für einen Magnetkopf |
Country Status (4)
Country | Link |
---|---|
US (1) | US5452167A (de) |
EP (1) | EP0620571B1 (de) |
JP (1) | JPH06338410A (de) |
DE (1) | DE69428227T2 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2780588B2 (ja) * | 1993-01-14 | 1998-07-30 | 松下電器産業株式会社 | 積層型磁気ヘッドコア |
US5589221A (en) * | 1994-05-16 | 1996-12-31 | Matsushita Electric Industrial Co., Ltd. | Magnetic thin film, and method of manufacturing the same, and magnetic head |
JP3707166B2 (ja) * | 1996-01-29 | 2005-10-19 | ソニー株式会社 | 磁気ヘッド |
US5780175A (en) * | 1996-02-02 | 1998-07-14 | Lucent Technologies Inc. | Articles comprising magnetically soft thin films and methods for making such articles |
JPH09293207A (ja) * | 1996-04-26 | 1997-11-11 | Sony Corp | 磁気ヘッド |
US6420954B1 (en) | 1999-12-10 | 2002-07-16 | Micron Technology, Inc. | Coupled multilayer soft magnetic films for high frequency microtransformer for system-on-chip power supply |
WO2001085631A1 (fr) * | 2000-05-11 | 2001-11-15 | Matsushita Electric Industrial Co., Ltd. | Composition de verre, verre d'etancheite pour tete magnetique et tete magnetique correspondante |
US6721131B2 (en) * | 2001-03-15 | 2004-04-13 | Seagate Technology Llc | Composite write pole for a magnetic recording head |
US20040219328A1 (en) * | 2001-08-31 | 2004-11-04 | Kazunori Tasaki | Laminated soft magnetic member, soft magnetic sheet and production method for laminated soft magnetic member |
CN100470634C (zh) * | 2002-08-22 | 2009-03-18 | 松下电器产业株式会社 | 磁头和磁记录再现装置 |
US7989095B2 (en) * | 2004-12-28 | 2011-08-02 | General Electric Company | Magnetic layer with nanodispersoids having a bimodal distribution |
US20070253103A1 (en) * | 2006-04-27 | 2007-11-01 | Heraeus, Inc. | Soft magnetic underlayer in magnetic media and soft magnetic alloy based sputter target |
US8228633B1 (en) | 2008-08-21 | 2012-07-24 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording transducer having a hybrid moment pole |
US8958176B2 (en) | 2010-12-22 | 2015-02-17 | HGST Netherlands B.V | Write head pole laminate structure |
CN112868074A (zh) * | 2018-11-15 | 2021-05-28 | 罗杰斯公司 | 高频磁性膜、其制造方法及用途 |
TW202116700A (zh) | 2019-09-24 | 2021-05-01 | 美商羅傑斯公司 | 鉍釕m型六方晶系鐵氧體、包含彼之組合物及複合物、及製造方法 |
JP2023516133A (ja) | 2020-02-21 | 2023-04-18 | ロジャーズ・コーポレイション | ナノ結晶構造を有するz型ヘキサフェライト |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61230607A (ja) * | 1985-04-05 | 1986-10-14 | Showa Denko Kk | 磁気ヘツドコア |
JPH0744108B2 (ja) * | 1989-01-26 | 1995-05-15 | 富士写真フイルム株式会社 | 軟磁性薄膜 |
JPH0785452B2 (ja) * | 1990-04-20 | 1995-09-13 | 日本電気株式会社 | 磁性体膜とその製造方法 |
JP2789806B2 (ja) * | 1990-09-28 | 1998-08-27 | 松下電器産業株式会社 | 軟磁性窒化合金膜の作製方法 |
US5227193A (en) * | 1990-10-02 | 1993-07-13 | Matsushita Electric Industrial Co., Ltd. | Method for manufacturing magnetic head |
JPH04325906A (ja) * | 1991-04-26 | 1992-11-16 | Matsushita Electric Ind Co Ltd | 磁気ヘッド |
EP0502535B1 (de) * | 1991-03-06 | 1996-10-02 | Matsushita Electric Industrial Co., Ltd. | Magnetknopf |
JP2757586B2 (ja) * | 1991-06-14 | 1998-05-25 | 松下電器産業株式会社 | 軟磁性薄膜 |
EP0584768B1 (de) * | 1992-08-24 | 1999-08-11 | Matsushita Electric Industrial Co., Ltd. | Herstellungsverfahren eines weichmagnetischen Filmes |
-
1993
- 1993-10-06 JP JP5250475A patent/JPH06338410A/ja active Pending
-
1994
- 1994-03-31 US US08/220,482 patent/US5452167A/en not_active Expired - Lifetime
- 1994-03-31 EP EP94105117A patent/EP0620571B1/de not_active Expired - Lifetime
- 1994-03-31 DE DE69428227T patent/DE69428227T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06338410A (ja) | 1994-12-06 |
US5452167A (en) | 1995-09-19 |
EP0620571A3 (de) | 1995-02-08 |
DE69428227T2 (de) | 2002-06-27 |
EP0620571B1 (de) | 2001-09-12 |
EP0620571A2 (de) | 1994-10-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |