JPH0532808B2 - - Google Patents
Info
- Publication number
- JPH0532808B2 JPH0532808B2 JP6462985A JP6462985A JPH0532808B2 JP H0532808 B2 JPH0532808 B2 JP H0532808B2 JP 6462985 A JP6462985 A JP 6462985A JP 6462985 A JP6462985 A JP 6462985A JP H0532808 B2 JPH0532808 B2 JP H0532808B2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- crystal layer
- thin film
- magnetization
- coercive force
- 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 - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 claims description 96
- 230000005415 magnetization Effects 0.000 claims description 77
- 239000010955 niobium Substances 0.000 claims description 64
- 239000011651 chromium Substances 0.000 claims description 49
- 239000000696 magnetic material Substances 0.000 claims description 18
- 229910052758 niobium Inorganic materials 0.000 claims description 16
- 229910052715 tantalum Inorganic materials 0.000 claims description 16
- 229910052804 chromium Inorganic materials 0.000 claims description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 229910017052 cobalt Inorganic materials 0.000 claims description 7
- 239000010941 cobalt Substances 0.000 claims description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 7
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 6
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 145
- 239000013078 crystal Substances 0.000 description 88
- 239000010409 thin film Substances 0.000 description 68
- 239000010408 film Substances 0.000 description 41
- 238000004544 sputter deposition Methods 0.000 description 22
- 239000002356 single layer Substances 0.000 description 17
- 230000004907 flux Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000035699 permeability Effects 0.000 description 7
- 230000005330 Barkhausen effect Effects 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 4
- 229920001721 polyimide Polymers 0.000 description 4
- 229910000599 Cr alloy Inorganic materials 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000003302 ferromagnetic material Substances 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
- 230000000630 rising effect Effects 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 229910000684 Cobalt-chrome Inorganic materials 0.000 description 1
- 229910003271 Ni-Fe Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010952 cobalt-chrome Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Thin Magnetic Films (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Magnetic Record Carriers (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6462985A JPS61222022A (ja) | 1985-03-28 | 1985-03-28 | 垂直磁気記録媒体 |
| GB08607797A GB2175013B (en) | 1985-03-28 | 1986-03-27 | Perpendicular magnetic recording medium |
| DE19863610431 DE3610431A1 (de) | 1985-03-28 | 1986-03-27 | Quermagnetisierungsaufzeichnungsmedium |
| US07/176,832 US4792486A (en) | 1985-03-28 | 1988-04-04 | Perpendicular magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6462985A JPS61222022A (ja) | 1985-03-28 | 1985-03-28 | 垂直磁気記録媒体 |
Related Child Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15790785A Division JPS61224130A (ja) | 1985-03-28 | 1985-07-17 | 垂直磁気記録媒体 |
| JP15790685A Division JPS61224129A (ja) | 1985-03-28 | 1985-07-17 | 垂直磁気記録媒体 |
| JP60291561A Division JPH0642281B2 (ja) | 1985-12-24 | 1985-12-24 | 垂直磁気記録再生方法 |
| JP29155985A Division JPS61224133A (ja) | 1985-12-24 | 1985-12-24 | 垂直磁気記録媒体 |
| JP29156085A Division JPS61224134A (ja) | 1985-03-28 | 1985-12-24 | 垂直磁気記録媒体 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61222022A JPS61222022A (ja) | 1986-10-02 |
| JPH0532808B2 true JPH0532808B2 (en]) | 1993-05-18 |
Family
ID=13263741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6462985A Granted JPS61222022A (ja) | 1985-03-28 | 1985-03-28 | 垂直磁気記録媒体 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61222022A (en]) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2549769B2 (ja) * | 1990-12-27 | 1996-10-30 | 松下電器産業株式会社 | 磁気記録媒体 |
-
1985
- 1985-03-28 JP JP6462985A patent/JPS61222022A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61222022A (ja) | 1986-10-02 |
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