SG143233A1 - Perpendicular magnetic recording medium with multilayer recording structure including intergranular exchange enhancement layer - Google Patents
Perpendicular magnetic recording medium with multilayer recording structure including intergranular exchange enhancement layerInfo
- Publication number
- SG143233A1 SG143233A1 SG200718378-3A SG2007183783A SG143233A1 SG 143233 A1 SG143233 A1 SG 143233A1 SG 2007183783 A SG2007183783 A SG 2007183783A SG 143233 A1 SG143233 A1 SG 143233A1
- Authority
- SG
- Singapore
- Prior art keywords
- intergranular exchange
- mag2
- multilayer
- perpendicular magnetic
- recording medium
- Prior art date
Links
- 230000005291 magnetic effect Effects 0.000 title abstract 3
- 239000010410 layer Substances 0.000 abstract 7
- 101100356345 Homo sapiens RETREG2 gene Proteins 0.000 abstract 6
- 101150009428 MAG2 gene Proteins 0.000 abstract 6
- 102100024733 Reticulophagy regulator 2 Human genes 0.000 abstract 6
- JQAACYUZYRBHGG-QHTZZOMLSA-L magnesium;(2s)-5-oxopyrrolidine-2-carboxylate Chemical compound [Mg+2].[O-]C(=O)[C@@H]1CCC(=O)N1.[O-]C(=O)[C@@H]1CCC(=O)N1 JQAACYUZYRBHGG-QHTZZOMLSA-L 0.000 abstract 6
- 230000005294 ferromagnetic effect Effects 0.000 abstract 5
- 230000008878 coupling Effects 0.000 abstract 4
- 238000010168 coupling process Methods 0.000 abstract 4
- 238000005859 coupling reaction Methods 0.000 abstract 4
- 239000011229 interlayer Substances 0.000 abstract 3
- 229910000531 Co alloy Inorganic materials 0.000 abstract 2
- 101100457021 Caenorhabditis elegans mag-1 gene Proteins 0.000 abstract 1
- 229910000684 Cobalt-chrome Inorganic materials 0.000 abstract 1
- 101100067996 Mus musculus Gbp1 gene Proteins 0.000 abstract 1
- 239000010952 cobalt-chrome Substances 0.000 abstract 1
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
- G11B5/672—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers having different compositions in a plurality of magnetic layers, e.g. layer compositions having differing elemental components or differing proportions of elements
-
- 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
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0026—Pulse recording
- G11B2005/0029—Pulse recording using magnetisation components of the recording layer disposed mainly perpendicularly to the record carrier surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/567,908 US20080138662A1 (en) | 2006-12-07 | 2006-12-07 | Perpendicular magnetic recording medium with multilayer recording structure including intergranular exchange enhancement layer |
Publications (1)
Publication Number | Publication Date |
---|---|
SG143233A1 true SG143233A1 (en) | 2008-06-27 |
Family
ID=38654680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200718378-3A SG143233A1 (en) | 2006-12-07 | 2007-12-06 | Perpendicular magnetic recording medium with multilayer recording structure including intergranular exchange enhancement layer |
Country Status (7)
Country | Link |
---|---|
US (1) | US20080138662A1 (zh) |
EP (1) | EP1930882A1 (zh) |
JP (1) | JP2008146816A (zh) |
KR (1) | KR20080052376A (zh) |
CN (1) | CN101197138B (zh) |
SG (1) | SG143233A1 (zh) |
TW (1) | TW200830298A (zh) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7862913B2 (en) * | 2006-10-23 | 2011-01-04 | Hitachi Global Storage Technologies Netherlands B.V. | Oxide magnetic recording layers for perpendicular recording media |
JP2009070540A (ja) * | 2007-09-12 | 2009-04-02 | Samsung Electronics Co Ltd | 垂直磁気記録媒体及びその製造方法 |
KR101196732B1 (ko) * | 2008-02-01 | 2012-11-07 | 시게이트 테크놀로지 엘엘씨 | 수직자기 기록매체 |
JP2010040071A (ja) * | 2008-07-31 | 2010-02-18 | Showa Denko Kk | 垂直磁気記録媒体、垂直磁気記録媒体の製造方法、および磁気記憶装置 |
US8202636B2 (en) * | 2008-12-23 | 2012-06-19 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic recording capping layer with multiple layers for controlling anisotropy for perpendicular recording media |
US20110003175A1 (en) * | 2009-07-02 | 2011-01-06 | Seagate Technology Llc | Composite perpendicular media with graded anisotropy layers and exchange break layers |
US7998607B2 (en) * | 2009-07-31 | 2011-08-16 | Hitachi Global Storage Technologies Netherlands, B.V. | Partially-oxidized cap layer for hard disk drive magnetic media |
US8168309B2 (en) * | 2009-08-13 | 2012-05-01 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular recording media with sublayers of oxide dopant magnetic materials |
US8168310B2 (en) | 2009-12-15 | 2012-05-01 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording media with oxide-containing exchange coupling layer |
US8460805B1 (en) | 2010-12-23 | 2013-06-11 | Seagate Technology Llc | Magnetic layers |
US9183867B1 (en) | 2013-02-21 | 2015-11-10 | WD Media, LLC | Systems and methods for forming implanted capping layers in magnetic media for magnetic recording |
US8947987B1 (en) | 2013-05-03 | 2015-02-03 | WD Media, LLC | Systems and methods for providing capping layers for heat assisted magnetic recording media |
JP6285785B2 (ja) * | 2013-06-10 | 2018-02-28 | 昭和電工株式会社 | 垂直記録媒体および垂直記録再生装置 |
US9159350B1 (en) | 2014-07-02 | 2015-10-13 | WD Media, LLC | High damping cap layer for magnetic recording media |
JP7125061B2 (ja) * | 2019-01-11 | 2022-08-24 | 田中貴金属工業株式会社 | 垂直磁気記録媒体 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6440589B1 (en) * | 1999-06-02 | 2002-08-27 | International Business Machines Corporation | Magnetic media with ferromagnetic overlay materials for improved thermal stability |
US6641932B1 (en) * | 2000-09-05 | 2003-11-04 | Seagate Technology, Llc | Magnetic thin film media with chromium capping layer |
EP1406248A4 (en) * | 2001-07-11 | 2007-11-21 | Fujitsu Ltd | MAGNETIC RECORDING MEDIUM AND METHOD FOR THE PRODUCTION THEREOF |
US7842409B2 (en) * | 2001-11-30 | 2010-11-30 | Seagate Technology Llc | Anti-ferromagnetically coupled perpendicular magnetic recording media with oxide |
US6824896B2 (en) * | 2002-01-14 | 2004-11-30 | Seagate Technology Llc | System and method for recording media on textured glass |
US7226674B2 (en) * | 2003-02-07 | 2007-06-05 | Hitachi Maxell, Ltd. | Magnetic recording medium, method for producing the same, and magnetic recording apparatus |
JP2004303377A (ja) * | 2003-03-31 | 2004-10-28 | Toshiba Corp | 垂直磁気記録媒体及び磁気記録再生装置 |
US7169488B2 (en) * | 2003-06-03 | 2007-01-30 | Seagate Technology Llc | Granular perpendicular media with surface treatment for improved magnetic properties and corrosion resistance |
JP4812254B2 (ja) * | 2004-01-08 | 2011-11-09 | 富士電機株式会社 | 垂直磁気記録媒体、および、その製造方法 |
JP2005251264A (ja) * | 2004-03-02 | 2005-09-15 | Fuji Electric Holdings Co Ltd | 垂直磁気記録媒体およびその製造方法 |
JP4540557B2 (ja) * | 2004-07-05 | 2010-09-08 | 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 |
US7736765B2 (en) * | 2004-12-28 | 2010-06-15 | Seagate Technology Llc | Granular perpendicular magnetic recording media with dual recording layer and method of fabricating same |
US20060228586A1 (en) * | 2005-04-06 | 2006-10-12 | Seagate Technology Llc | Ferromagnetically coupled magnetic recording media |
US7572527B2 (en) * | 2005-05-24 | 2009-08-11 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording medium with improved antiferromagnetically-coupled recording layer |
US7482071B2 (en) * | 2005-05-24 | 2009-01-27 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording disk with improved recording layer having high oxygen content |
US7491452B2 (en) * | 2005-08-12 | 2009-02-17 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording disk with recording layer containing selected metal oxides and formed on a reduced-thickness exchange-break layer |
US7550210B2 (en) * | 2006-03-09 | 2009-06-23 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording medium with multiple exchange-coupled magnetic layers having substantially similar anisotropy fields |
US7488545B2 (en) * | 2006-04-12 | 2009-02-10 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording medium with laminated recording layers formed of exchange-coupled ferromagnetic layers |
-
2006
- 2006-12-07 US US11/567,908 patent/US20080138662A1/en not_active Abandoned
-
2007
- 2007-07-12 EP EP07252789A patent/EP1930882A1/en not_active Withdrawn
- 2007-10-05 TW TW096137628A patent/TW200830298A/zh unknown
- 2007-11-09 KR KR1020070114374A patent/KR20080052376A/ko not_active Application Discontinuation
- 2007-12-04 JP JP2007313302A patent/JP2008146816A/ja not_active Withdrawn
- 2007-12-06 SG SG200718378-3A patent/SG143233A1/en unknown
- 2007-12-07 CN CN2007101962988A patent/CN101197138B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20080052376A (ko) | 2008-06-11 |
JP2008146816A (ja) | 2008-06-26 |
CN101197138B (zh) | 2010-08-18 |
EP1930882A1 (en) | 2008-06-11 |
TW200830298A (en) | 2008-07-16 |
CN101197138A (zh) | 2008-06-11 |
US20080138662A1 (en) | 2008-06-12 |
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