Hexagonal ferrite thin films with nano-dot structure for high density patterned medium
| Project/Area Number |
21360148
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Electronic materials/Electric materials
|
|---|
| Research Institution | Shinshu University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
LIU Xiaoxi 信州大学, 工学部, 准教授 (10372509)
YASUKAWA Yukiko 信州大学, 工学部, 特任助教 (10458995)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2009: ¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
|
|---|
| Keywords | 高密度磁気記録 / バリウムフェライト薄膜 / ナノドット / スパッタ / 自己組織 / ナノスポット結晶化 / パターン媒体 / 磁気ドット / 自己組織化 / Srフェライト / 六方晶フェライト / 高密度記録 / パターン化媒体 / ナノドット薄膜 / 垂直磁化膜 / ストロンチウムフェライト薄膜 / 金薄膜 |
|---|
| Research Abstract |
In order to store all of the digital information in the world, HDD with huge capacity an high recording density are necessary. In this study, synthesis of a patterned media using hexagonal ferrite thin films with self assembled nano-dot structure has been tried for future high density recording media. Two under-layer, which are Si-Al layer and Au nano-dot layer have been used for the under layer of hexagonal ferrite layer. Ferrite layer is non-magnetic when it is amorphous. The crystallization temperature of ferrite layer on metal under-layer is much lower than that of non metallic under layer. The idea of this research is nano-dot crystallization of hexagonal ferrite layer with self-assembled metal nano-dot area. The MFM images show that hexagonal ferrite layer seems to be crystallized on Au nano-dot parts and other area is still amorphous and non-magnetic.
|
Report
(4 results)
Research Products
(17 results)
