CN100440324C - 垂直磁记录介质以及磁存储装置 - Google Patents
垂直磁记录介质以及磁存储装置 Download PDFInfo
- Publication number
- CN100440324C CN100440324C CNB038271494A CN03827149A CN100440324C CN 100440324 C CN100440324 C CN 100440324C CN B038271494 A CNB038271494 A CN B038271494A CN 03827149 A CN03827149 A CN 03827149A CN 100440324 C CN100440324 C CN 100440324C
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- CN
- China
- Prior art keywords
- layer
- magnetic
- recording medium
- soft magnetism
- magnetic flux
- 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
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Images
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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
- G11B5/667—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
- G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier layers
- G11B5/737—Physical structure of underlayer, e.g. texture
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
- G11B5/7373—Non-magnetic single underlayer comprising chromium
-
- 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
- G11B5/7377—Physical structure of underlayer, e.g. texture
Landscapes
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/012538 WO2005034097A1 (ja) | 2003-09-30 | 2003-09-30 | 垂直磁気記録媒体,その製造方法、記録方法及び再生方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1839429A CN1839429A (zh) | 2006-09-27 |
CN100440324C true CN100440324C (zh) | 2008-12-03 |
Family
ID=34401437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB038271494A Expired - Fee Related CN100440324C (zh) | 2003-09-30 | 2003-09-30 | 垂直磁记录介质以及磁存储装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7807278B2 (zh) |
JP (1) | JPWO2005034097A1 (zh) |
CN (1) | CN100440324C (zh) |
WO (1) | WO2005034097A1 (zh) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4247575B2 (ja) * | 2003-05-20 | 2009-04-02 | 富士電機デバイステクノロジー株式会社 | 垂直磁気記録媒体の製造方法 |
JP4928751B2 (ja) * | 2005-07-14 | 2012-05-09 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | 垂直磁気記録媒体 |
JP4571084B2 (ja) * | 2006-03-01 | 2010-10-27 | 株式会社日立製作所 | パターンドメディア及びその製造方法 |
JP2007273056A (ja) * | 2006-03-31 | 2007-10-18 | Fujitsu Ltd | 垂直磁気記録媒体および磁気記憶装置 |
JP2007273057A (ja) * | 2006-03-31 | 2007-10-18 | Fujitsu Ltd | 垂直磁気記録媒体および磁気記憶装置 |
JP2007273055A (ja) | 2006-03-31 | 2007-10-18 | Fujitsu Ltd | 垂直磁気記録媒体および磁気記憶装置 |
JP4504960B2 (ja) * | 2006-08-28 | 2010-07-14 | 株式会社日立製作所 | 熱アシスト磁気記録装置 |
JP2008084413A (ja) * | 2006-09-27 | 2008-04-10 | Fujitsu Ltd | 磁気記録媒体、磁気記録媒体の製造方法及び磁気記録装置 |
JP2008140460A (ja) * | 2006-11-30 | 2008-06-19 | Toshiba Corp | 垂直磁気記録媒体及び磁気記録再生装置 |
WO2008099859A1 (ja) * | 2007-02-13 | 2008-08-21 | Hoya Corporation | 磁気記録媒体、磁気記録媒体の製造方法、及び磁気ディスク |
US20090011283A1 (en) * | 2007-03-01 | 2009-01-08 | Seagate Technology Llc | Hcp soft underlayer |
WO2008133035A1 (ja) * | 2007-04-13 | 2008-11-06 | Fuji Electric Device Technology Co., Ltd. | 垂直磁気記録媒体 |
JP4772015B2 (ja) * | 2007-09-06 | 2011-09-14 | 昭和電工株式会社 | 磁気記録媒体および磁気記録再生装置 |
JP4292226B1 (ja) * | 2007-12-20 | 2009-07-08 | 株式会社東芝 | 垂直磁気記録媒体、及びこれを用いた磁気記録再生装置 |
JP4357570B2 (ja) * | 2008-01-31 | 2009-11-04 | 株式会社東芝 | 磁気記録媒体の製造方法 |
JP2009187608A (ja) * | 2008-02-05 | 2009-08-20 | Toshiba Corp | 垂直磁気記録パターンド媒体および磁気記録再生装置 |
US8114470B2 (en) * | 2008-11-26 | 2012-02-14 | Seagate Technology Llc | Reduced spacing recording apparatus |
US8709533B2 (en) * | 2010-09-09 | 2014-04-29 | Varian Semiconductor Equipment Associates, Inc. | Technique for manufacturing bit patterned media |
US9093101B2 (en) * | 2011-02-28 | 2015-07-28 | Seagate Technology Llc | Stack including a magnetic zero layer |
US8470463B2 (en) | 2011-04-22 | 2013-06-25 | Seagate Technology Llc | Magnetic shield with in-plane anisotropy |
US8675315B2 (en) | 2011-07-29 | 2014-03-18 | Seagate Technology Llc | Magnetic sensor with anisotropic liner |
US8758912B2 (en) | 2011-09-16 | 2014-06-24 | WD Media, LLC | Interlayers for magnetic recording media |
CN104105977B (zh) * | 2012-02-13 | 2017-09-26 | 株式会社村田制作所 | 磁传感装置 |
JP5575172B2 (ja) * | 2012-03-28 | 2014-08-20 | 株式会社東芝 | 磁気記録媒体,磁気記録再生装置,および磁気記録媒体の製造方法 |
US8755149B2 (en) * | 2012-09-15 | 2014-06-17 | Headway Technologies, Inc. | Shield designs with internal magnetization control for ATE improvement |
US8614862B1 (en) * | 2012-12-21 | 2013-12-24 | HGST Netherlands B.V. | Perpendicular magnetic recording media having a cap layer above a granular layer |
US20170018285A1 (en) * | 2015-07-14 | 2017-01-19 | HGST Netherlands B.V. | Barium hexa-ferrite technology for mamr and advanced magnetic recording applications |
JP6825573B2 (ja) * | 2015-11-17 | 2021-02-03 | ソニー株式会社 | 磁気記録媒体 |
US10170518B2 (en) | 2017-05-30 | 2019-01-01 | Samsung Electronics Co., Ltd. | Self-assembled pattern process for fabricating magnetic junctions usable in spin transfer torque applications |
US11501196B2 (en) * | 2018-11-26 | 2022-11-15 | International Business Machines Corporation | Qubit tuning by magnetic fields in superconductors |
CN112509805B (zh) * | 2020-10-19 | 2022-05-27 | 山东麦格智芯机电科技有限公司 | 一种优化钴基磁性薄膜电感材料磁性能的方法 |
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JP2002092843A (ja) * | 2000-09-12 | 2002-03-29 | Toshiba Corp | 磁気記録媒体 |
JP2003228809A (ja) * | 2002-02-06 | 2003-08-15 | Fujitsu Ltd | 垂直磁気記録媒体 |
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JP2615144B2 (ja) | 1988-07-14 | 1997-05-28 | 日立マクセル株式会社 | 磁気記録媒体 |
JPH03130904A (ja) | 1989-09-13 | 1991-06-04 | Hitachi Ltd | 磁気記録方式 |
JPH05303734A (ja) * | 1992-03-30 | 1993-11-16 | Victor Co Of Japan Ltd | 垂直磁気記録媒体 |
JPH06295431A (ja) | 1993-04-06 | 1994-10-21 | Fujitsu Ltd | 垂直磁気記録媒体 |
JPH0744851A (ja) | 1993-07-30 | 1995-02-14 | Denki Kagaku Kogyo Kk | 垂直磁気記録媒体及びその製造方法 |
JPH103644A (ja) | 1996-06-18 | 1998-01-06 | Tokin Corp | 磁気記録媒体及びその製造方法 |
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JP2001134918A (ja) | 1999-11-04 | 2001-05-18 | Hitachi Maxell Ltd | 磁気記録媒体及び磁気記録装置 |
JP2002025030A (ja) | 2000-07-06 | 2002-01-25 | Hitachi Ltd | 垂直磁気記録媒体とその製法および磁気記録装置 |
SG91343A1 (en) | 2000-07-19 | 2002-09-17 | Toshiba Kk | Perpendicular magnetic recording medium and magnetic recording apparatus |
JP2002163819A (ja) | 2000-11-22 | 2002-06-07 | Hitachi Maxell Ltd | 情報記録媒体及びそれを用いた情報記録装置 |
JP2002197635A (ja) | 2000-12-28 | 2002-07-12 | Showa Denko Kk | 磁気記録媒体、その製造方法および磁気記録再生装置 |
JP2003016620A (ja) * | 2001-06-29 | 2003-01-17 | Toshiba Corp | 磁気記録媒体、磁気記録装置および磁気記録方法 |
US6682826B2 (en) | 2001-08-01 | 2004-01-27 | Showa Denko K.K. | Magnetic recording medium, method of manufacturing therefor, and magnetic read/write apparatus |
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JP4626840B2 (ja) | 2001-08-31 | 2011-02-09 | 富士電機デバイステクノロジー株式会社 | 垂直磁気記録媒体及びその製造方法 |
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JP2004030740A (ja) | 2002-06-24 | 2004-01-29 | Showa Denko Kk | 磁気記録媒体、その製造方法、および磁気記録再生装置 |
JP2004030470A (ja) | 2002-06-27 | 2004-01-29 | Fuji Photo Film Co Ltd | 情報処理システム、制御方法、及びプログラム |
US6881503B2 (en) * | 2002-06-28 | 2005-04-19 | Seagate Technology Llc | Perpendicular magnetic recording media with laminated magnetic layer structure |
JP2004118956A (ja) * | 2002-09-27 | 2004-04-15 | Toshiba Corp | 磁気記録媒体 |
JP2004164692A (ja) * | 2002-11-08 | 2004-06-10 | Toshiba Corp | 磁気記録媒体及びその製造方法 |
JP2004259306A (ja) * | 2003-02-24 | 2004-09-16 | Hitachi Ltd | 磁気記録媒体および磁気記録媒体の製造方法 |
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- 2003-09-30 WO PCT/JP2003/012538 patent/WO2005034097A1/ja active Application Filing
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Patent Citations (2)
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JP2002092843A (ja) * | 2000-09-12 | 2002-03-29 | Toshiba Corp | 磁気記録媒体 |
JP2003228809A (ja) * | 2002-02-06 | 2003-08-15 | Fujitsu Ltd | 垂直磁気記録媒体 |
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WO2005034097A1 (ja) | 2005-04-14 |
CN1839429A (zh) | 2006-09-27 |
US7807278B2 (en) | 2010-10-05 |
US20060199043A1 (en) | 2006-09-07 |
JPWO2005034097A1 (ja) | 2006-12-14 |
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