CN102356430B - 磁记录介质及存储装置 - Google Patents
磁记录介质及存储装置 Download PDFInfo
- Publication number
- CN102356430B CN102356430B CN201080012061.XA CN201080012061A CN102356430B CN 102356430 B CN102356430 B CN 102356430B CN 201080012061 A CN201080012061 A CN 201080012061A CN 102356430 B CN102356430 B CN 102356430B
- Authority
- CN
- China
- Prior art keywords
- magnetic
- layer
- granular
- recording medium
- nonmagnetic
- 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.)
- Active
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 226
- 239000006249 magnetic particle Substances 0.000 claims abstract description 22
- 239000000696 magnetic material Substances 0.000 claims abstract description 14
- 238000007885 magnetic separation Methods 0.000 claims abstract description 13
- 239000002923 metal particle Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 25
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 22
- QDOXWKRWXJOMAK-UHFFFAOYSA-N chromium(III) oxide Inorganic materials O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 16
- 229910052681 coesite Inorganic materials 0.000 claims description 16
- 229910052906 cristobalite Inorganic materials 0.000 claims description 16
- 239000000377 silicon dioxide Substances 0.000 claims description 16
- 229910052682 stishovite Inorganic materials 0.000 claims description 16
- 229910052905 tridymite Inorganic materials 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 15
- 229910004481 Ta2O3 Inorganic materials 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 229910000929 Ru alloy Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 178
- 239000013078 crystal Substances 0.000 description 26
- 239000002245 particle Substances 0.000 description 11
- 239000006185 dispersion Substances 0.000 description 9
- 239000011241 protective layer Substances 0.000 description 9
- 230000005415 magnetization Effects 0.000 description 7
- 238000004544 sputter deposition Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005292 diamagnetic effect Effects 0.000 description 2
- -1 for example Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010702 perfluoropolyether Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 229910002458 Co-SiO2 Inorganic materials 0.000 description 1
- 229910003321 CoFe Inorganic materials 0.000 description 1
- 229910002518 CoFe2O4 Inorganic materials 0.000 description 1
- 229910019586 CoZrTa Inorganic materials 0.000 description 1
- 229910005435 FeTaN Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910001308 Zinc ferrite Inorganic materials 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001753 carvones Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- XZWYZXLIPXDOLR-UHFFFAOYSA-N metformin Chemical compound CN(C)C(=N)NC(N)=N XZWYZXLIPXDOLR-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 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
- G11B5/676—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 magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer
- G11B5/678—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 magnetic layers separated by a nonmagnetic layer, e.g. antiferromagnetic layer, Cu layer or coupling layer having three or more magnetic layers
-
- 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
Landscapes
- Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
Abstract
Description
Claims (12)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009069062A JP5377015B2 (ja) | 2009-03-19 | 2009-03-19 | 磁気記録媒体 |
JP2009-069062 | 2009-03-19 | ||
PCT/JP2010/053358 WO2010106911A1 (ja) | 2009-03-19 | 2010-03-02 | 磁気記録媒体及び記憶装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102356430A CN102356430A (zh) | 2012-02-15 |
CN102356430B true CN102356430B (zh) | 2014-12-03 |
Family
ID=42739574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201080012061.XA Active CN102356430B (zh) | 2009-03-19 | 2010-03-02 | 磁记录介质及存储装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8722212B2 (zh) |
JP (1) | JP5377015B2 (zh) |
CN (1) | CN102356430B (zh) |
WO (1) | WO2010106911A1 (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5740897B2 (ja) | 2010-10-04 | 2015-07-01 | ミツミ電機株式会社 | 発電装置及びスイッチ |
US9093101B2 (en) * | 2011-02-28 | 2015-07-28 | Seagate Technology Llc | Stack including a magnetic zero layer |
JP6129869B2 (ja) * | 2011-12-22 | 2017-05-17 | シーゲイト テクノロジー エルエルシーSeagate Technology LLC | 高い磁気飽和および異方性磁界特性を有する薄い安定化層を備えた記録媒体 |
JP2015099626A (ja) * | 2013-11-19 | 2015-05-28 | 株式会社東芝 | 磁気記録媒体とその製造方法、磁気記録再生装置 |
JP6767251B2 (ja) * | 2016-12-08 | 2020-10-14 | 昭和電工株式会社 | 磁気記録媒体の製造方法 |
JP6767256B2 (ja) * | 2016-12-21 | 2020-10-14 | 昭和電工株式会社 | 磁気記録媒体の製造方法 |
JP7160705B2 (ja) * | 2019-01-28 | 2022-10-25 | 株式会社東芝 | 電磁波減衰体及び電子装置 |
CN113752655B (zh) * | 2020-05-27 | 2024-10-22 | 汪阳 | 一种充磁后易操作的柔性轻质磁性膜片材料及其制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006085742A (ja) * | 2004-09-14 | 2006-03-30 | Hitachi Global Storage Technologies Netherlands Bv | 垂直磁気記録媒体及びその製造方法 |
JP2008293559A (ja) * | 2007-05-22 | 2008-12-04 | Fujitsu Ltd | 磁気記録媒体及び磁気記憶装置 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62239314A (ja) | 1986-04-09 | 1987-10-20 | Hitachi Ltd | 垂直磁気記録媒体及びその製造方法 |
JP4409085B2 (ja) | 2000-12-28 | 2010-02-03 | 昭和電工株式会社 | 磁気記録媒体、その製造方法、および磁気記録再生装置 |
US7470474B2 (en) * | 2003-04-07 | 2008-12-30 | Kabushiki Kaisha Toshiba | Magnetic recording medium, production process thereof, and magnetic recording and reproducing apparatus including both oxide and non-oxide perpendicular magnetic layers |
JP4185391B2 (ja) | 2003-04-07 | 2008-11-26 | 昭和電工株式会社 | 磁気記録媒体、その製造方法および磁気記録再生装置 |
US7713389B2 (en) * | 2005-12-21 | 2010-05-11 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic recording disk with ultrathin nucleation film for improved corrosion resistance and method for making the disk |
US7862913B2 (en) * | 2006-10-23 | 2011-01-04 | Hitachi Global Storage Technologies Netherlands B.V. | Oxide magnetic recording layers for perpendicular recording media |
JP2008287771A (ja) | 2007-05-15 | 2008-11-27 | Fujitsu Ltd | 垂直磁気記録媒体、その製造方法及び磁気記録装置 |
JP5184843B2 (ja) * | 2007-08-21 | 2013-04-17 | エイチジーエスティーネザーランドビーブイ | 垂直磁気記録媒体及び磁気記憶装置 |
WO2009041656A1 (ja) | 2007-09-28 | 2009-04-02 | Hoya Corporation | 垂直磁気記録媒体 |
US8057926B2 (en) | 2007-09-28 | 2011-11-15 | WD Media(Singapore) Pte. Ltd. | Perpendicular magnetic recording medium |
JP5261001B2 (ja) * | 2007-09-28 | 2013-08-14 | 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 |
JP2009134804A (ja) * | 2007-11-29 | 2009-06-18 | Fujitsu Ltd | 磁気記録媒体及びその製造方法 |
JP2009238357A (ja) * | 2008-03-28 | 2009-10-15 | Fujitsu Ltd | 磁気記録媒体の製造方法 |
JP2009245479A (ja) | 2008-03-28 | 2009-10-22 | Hoya Corp | 垂直磁気記録媒体 |
JP5243835B2 (ja) * | 2008-04-08 | 2013-07-24 | エイチジーエスティーネザーランドビーブイ | 垂直磁気記録媒体及びそれを用いた磁気記憶装置 |
JP2010020854A (ja) | 2008-07-11 | 2010-01-28 | Showa Denko Kk | 磁気記録媒体および情報記憶装置 |
JP5088629B2 (ja) * | 2008-08-22 | 2012-12-05 | 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 |
JP2010086583A (ja) * | 2008-09-30 | 2010-04-15 | Hoya Corp | 垂直磁気記録媒体および垂直磁気記録媒体の製造方法 |
-
2009
- 2009-03-19 JP JP2009069062A patent/JP5377015B2/ja active Active
-
2010
- 2010-03-02 US US13/257,227 patent/US8722212B2/en active Active
- 2010-03-02 WO PCT/JP2010/053358 patent/WO2010106911A1/ja active Application Filing
- 2010-03-02 CN CN201080012061.XA patent/CN102356430B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006085742A (ja) * | 2004-09-14 | 2006-03-30 | Hitachi Global Storage Technologies Netherlands Bv | 垂直磁気記録媒体及びその製造方法 |
JP2008293559A (ja) * | 2007-05-22 | 2008-12-04 | Fujitsu Ltd | 磁気記録媒体及び磁気記憶装置 |
Also Published As
Publication number | Publication date |
---|---|
CN102356430A (zh) | 2012-02-15 |
JP5377015B2 (ja) | 2013-12-25 |
JP2010225212A (ja) | 2010-10-07 |
WO2010106911A1 (ja) | 2010-09-23 |
US20120019959A1 (en) | 2012-01-26 |
US8722212B2 (en) | 2014-05-13 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: Tokyo, Japan Patentee after: Lishennoco Co.,Ltd. Address before: Tokyo, Japan Patentee before: Showa electrical materials Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20230616 Address after: Tokyo, Japan Patentee after: Showa electrical materials Co.,Ltd. Address before: Tokyo, Japan Patentee before: SHOWA DENKO Kabushiki Kaisha |
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TR01 | Transfer of patent right |
Effective date of registration: 20241101 Address after: Chiba County, Japan Patentee after: Lishennuoke Hard Drive Co.,Ltd. Country or region after: Japan Address before: Tokyo, Japan Patentee before: Lishennoco Co.,Ltd. Country or region before: Japan |