JPWO2017033393A1 - 磁気記録媒体 - Google Patents
磁気記録媒体 Download PDFInfo
- Publication number
- JPWO2017033393A1 JPWO2017033393A1 JP2017536196A JP2017536196A JPWO2017033393A1 JP WO2017033393 A1 JPWO2017033393 A1 JP WO2017033393A1 JP 2017536196 A JP2017536196 A JP 2017536196A JP 2017536196 A JP2017536196 A JP 2017536196A JP WO2017033393 A1 JPWO2017033393 A1 JP WO2017033393A1
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- layer
- magnetic
- recording medium
- feptrh
- 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.)
- Granted
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 208
- 239000000956 alloy Substances 0.000 claims abstract description 44
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 229910052703 rhodium Inorganic materials 0.000 claims description 33
- 229910052742 iron Inorganic materials 0.000 claims description 26
- 229910052697 platinum Inorganic materials 0.000 claims description 24
- 230000007423 decrease Effects 0.000 abstract description 17
- 239000000696 magnetic material Substances 0.000 abstract description 10
- 239000010410 layer Substances 0.000 description 194
- 239000010948 rhodium Substances 0.000 description 93
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 75
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 65
- 239000000463 material Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 23
- 239000013078 crystal Substances 0.000 description 21
- 229910052802 copper Inorganic materials 0.000 description 19
- 230000008859 change Effects 0.000 description 18
- 238000004544 sputter deposition Methods 0.000 description 17
- 229910052748 manganese Inorganic materials 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 239000011241 protective layer Substances 0.000 description 10
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 239000010408 film Substances 0.000 description 9
- 230000005415 magnetization Effects 0.000 description 9
- 230000005290 antiferromagnetic effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 8
- 239000000395 magnesium oxide Substances 0.000 description 8
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000001552 radio frequency sputter deposition Methods 0.000 description 7
- 229910052707 ruthenium Inorganic materials 0.000 description 6
- 239000000470 constituent Substances 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 4
- 230000005294 ferromagnetic effect Effects 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- 230000005316 antiferromagnetic exchange Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000007429 general method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910003321 CoFe Inorganic materials 0.000 description 2
- 229910002367 SrTiO Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 238000005001 rutherford backscattering spectroscopy Methods 0.000 description 2
- 229910000702 sendust Inorganic materials 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 1
- 229910000521 B alloy Inorganic materials 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910019233 CoFeNi Inorganic materials 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910020068 MgAl Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000013080 microcrystalline material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010702 perfluoropolyether Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000314 poly p-methyl styrene Polymers 0.000 description 1
- 206010063401 primary progressive multiple sclerosis Diseases 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 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
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/653—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing Fe or Ni
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/04—Alloys based on a platinum group metal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
Description
以下に実験例により、本発明を説明するが、以下の実験例は本発明を限定することを意図するものではない。
本実験例では、FePtX(X=Rh又はCu)からなる磁気記録層を含む磁気記録媒体について、Xの添加量と、面内配向の関係を検討した。
本実験例はFePtRhのTc、Ms及びKuについて評価した。
図6Aに示されるように、FePtRhからなる磁気記録層は、Rhの添加量が増加するにつれてTcが低下した。また、図6B及び図6Cに示すように、Tcの低下に伴い、Ms及びKuは低下するが、Tcの低下が十分と考えられる250〜300℃程度のTcで、十分な磁気特性を実現できると考えられる。従って、このTcを実現できる10at%以下のRh添加量(FePtRhの全量を基準)が、好ましいRh添加量であると考えられる。また、Fe/Pt比を見ると、図6Cに示されるようにFe/Pt比が1.0以上であると、10at%以下のRh添加量(Tcが約250℃以上)において良好なKu値を実現できると考えられる。また、Fe及びPtの含有量を見た場合、Fe/Pt比が1.0を超える領域(Fe/Pt=1.2〜1.4)では、Feの含有量が50%以上で特に優れた特性を実現することができる。
本実験例では、FeptX(X=Cu、Mn又はRu)について、Tc、Ms及びKuについて評価した。
図10A〜図10Cに示したFe/Pt=1.2の場合を見ると、FePtXでXがRu、Mn又はCuの場合と比較して、XがRhのとき、大きなTcの低下を示した(図10A)。また、Ms及びKuの値も、XがRhの場合、XがRu、Mn又はCuと比較して、大きな値を示した(図10B及び図10C)。
20 密着層
30 下地層
40 シード層
50 磁気記録層
60 保護層
202 反強磁性ドメイン
Claims (4)
- 基板と、磁気記録層とを含む磁気記録媒体であって、前記磁気記録層は、Fe、Pt及びRhを有する規則合金を含み、前記Fe、Pt及びRhを有する規則合金のRh含有量が10at%以下であることを特徴とする磁気記録媒体。
- 前記Fe、Pt及びRhを有する規則合金は、Fe/Ptの比が1.0以上であり、Rh含有量が1at%以上であることを特徴とする請求項1に記載の磁気記録媒体。
- 前記Fe、Pt及びRhを有する規則合金は、Fe/Ptの比が1.2以上であり、Rh含有量が1.5at%以上であることを特徴とする請求項1に記載の磁気記録媒体。
- 前記Fe、Pt及びRhを有する規則合金は、Fe含有量が50at%以上であることを特徴とする請求項3に記載の磁気記録媒体。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015165070 | 2015-08-24 | ||
JP2015165070 | 2015-08-24 | ||
PCT/JP2016/003367 WO2017033393A1 (ja) | 2015-08-24 | 2016-07-15 | 磁気記録媒体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2017033393A1 true JPWO2017033393A1 (ja) | 2017-11-02 |
JP6428943B2 JP6428943B2 (ja) | 2018-11-28 |
Family
ID=58099754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017536196A Active JP6428943B2 (ja) | 2015-08-24 | 2016-07-15 | 磁気記録媒体 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10741207B2 (ja) |
JP (1) | JP6428943B2 (ja) |
CN (1) | CN107210047B (ja) |
MY (1) | MY181706A (ja) |
SG (1) | SG11201706138VA (ja) |
WO (1) | WO2017033393A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MY166441A (en) * | 2015-07-02 | 2018-06-27 | Fuji Electric Co Ltd | Magnetic recording medium |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009151899A (ja) * | 2007-12-21 | 2009-07-09 | Akita Univ | 磁気記録媒体及びその製造方法ならびに磁気ディスク装置 |
JP2011208167A (ja) * | 2010-03-28 | 2011-10-20 | Mitsubishi Materials Corp | 磁気記録媒体膜形成用スパッタリングターゲットおよびその製造方法 |
JP2015005326A (ja) * | 2014-10-06 | 2015-01-08 | 昭和電工株式会社 | 熱アシスト磁気記録媒体及び磁気記録再生装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030108721A1 (en) * | 2001-12-11 | 2003-06-12 | Fullerton Eric E. | Thermally - assisted magnetic recording disk with recording layer exchange- coupled to antiferromagnetic-to-ferromagnetic switching layer |
US8241766B2 (en) | 2006-01-20 | 2012-08-14 | Seagate Technology Llc | Laminated exchange coupling adhesion (LECA) media for heat assisted magnetic recording |
TWI389107B (zh) * | 2009-11-03 | 2013-03-11 | Sheng Chi Chen | 具垂直磁異向性之單層鐵磁性合金薄膜 |
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 |
WO2013187217A1 (ja) * | 2012-06-14 | 2013-12-19 | 国立大学法人秋田大学 | FePt系合金における強磁性-常磁性相変化を利用した磁気記録媒体 |
US9472228B2 (en) * | 2013-05-28 | 2016-10-18 | HGST Netherlands B.V. | Perpendicular magnetic recording media having novel magnetic under-layer structure |
CN105637585B (zh) * | 2014-04-03 | 2019-04-23 | 富士电机株式会社 | 磁记录介质 |
MY163246A (en) * | 2014-08-12 | 2017-08-30 | Fuji Electric Co Ltd | Magnetic recording medium |
JP2016051497A (ja) * | 2014-08-29 | 2016-04-11 | シーゲイト テクノロジー エルエルシー | 熱アシストデータ記録媒体を備える装置およびデータ記録媒体 |
JP6594633B2 (ja) * | 2015-02-23 | 2019-10-23 | 富士電機株式会社 | 磁気記録媒体 |
SG11201705369SA (en) * | 2015-07-02 | 2017-08-30 | Fuji Electric Co Ltd | Manufacturing method for magnetic recording medium and magnetic recording medium manufactured by said manufacturing method |
MY166441A (en) * | 2015-07-02 | 2018-06-27 | Fuji Electric Co Ltd | Magnetic recording medium |
SG11201707058WA (en) * | 2015-09-17 | 2018-04-27 | Fuji Electric Co Ltd | Perpendicular magnetic recording medium |
US9601145B1 (en) * | 2016-05-25 | 2017-03-21 | HGST Netherlands B.V. | Heat-assisted magnetic recording (HAMR) disk with multiple continuous magnetic recording layers |
US9601144B1 (en) * | 2016-05-25 | 2017-03-21 | HGST Netherlands B.V. | Heat-assisted magnetic recording (HAMR) disk drive with disk having multiple continuous magnetic recording layers |
-
2016
- 2016-07-15 MY MYPI2017702735A patent/MY181706A/en unknown
- 2016-07-15 WO PCT/JP2016/003367 patent/WO2017033393A1/ja active Application Filing
- 2016-07-15 CN CN201680009030.6A patent/CN107210047B/zh active Active
- 2016-07-15 SG SG11201706138VA patent/SG11201706138VA/en unknown
- 2016-07-15 JP JP2017536196A patent/JP6428943B2/ja active Active
-
2017
- 2017-07-31 US US15/664,228 patent/US10741207B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009151899A (ja) * | 2007-12-21 | 2009-07-09 | Akita Univ | 磁気記録媒体及びその製造方法ならびに磁気ディスク装置 |
JP2011208167A (ja) * | 2010-03-28 | 2011-10-20 | Mitsubishi Materials Corp | 磁気記録媒体膜形成用スパッタリングターゲットおよびその製造方法 |
JP2015005326A (ja) * | 2014-10-06 | 2015-01-08 | 昭和電工株式会社 | 熱アシスト磁気記録媒体及び磁気記録再生装置 |
Also Published As
Publication number | Publication date |
---|---|
US10741207B2 (en) | 2020-08-11 |
CN107210047B (zh) | 2019-07-30 |
SG11201706138VA (en) | 2017-08-30 |
MY181706A (en) | 2021-01-04 |
US20170352372A1 (en) | 2017-12-07 |
CN107210047A (zh) | 2017-09-26 |
WO2017033393A1 (ja) | 2017-03-02 |
JP6428943B2 (ja) | 2018-11-28 |
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