| Project/Area Number |
21760228
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Electronic materials/Electric materials
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
KIKUCHI Nobuaki Tohoku University, 多元物質科学研究所, 助教 (80436170)
|
|---|
| Project Period (FY) |
2009 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
|---|
| Keywords | 動的磁化挙動 / パルス磁場 / ナノ磁性体 / 磁気記録 |
|---|
| Research Abstract |
In this research project magnetization behavior of nanoscal magnets with perpendicular anisotropy in sub-nanoseconds time regime has been investigated. A Pulse field generator with sub nanoseconds duration, which is comparable with magnetization reversal time, was developed. Magnetization reversal experiments were carried out on single dots of Co/Pd and Co/Pt multi layers. Magnetization reversal of those dots is governed by an embryo with a dimension of exchange length, and the behavior of those embryos can be well described with a thermally activated model from sub-nanoseconds to static time regime.
|
