2011 Fiscal Year Final Research Report
Study on spin arrangement in two dimensional ferromagnetic-antiferromagnetic nanostructure
| Project/Area Number |
22760224
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Electronic materials/Electric materials
|
|---|
| Research Institution | Akita University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2010 – 2011
|
| Keywords | L1_0規則合金 / FePtRh / ナノドット / ビット・パターンド・メディア / 強磁性-反強磁性相変化 / 交換結合 / 磁化反転 / 磁気力顕微鏡 |
|---|
| Research Abstract |
Magnetic nano-patterned films which have L10 ordered structure in whole patterned area were fabricated for investigating bit patterned media. On the ferromagnetic (FM)-weak FM pattern with the dot size of 50nm, the switching field distribution of FM dots were decreased to 2/5 due to its exchange coupling between dots and spacing. On the FM-antiferromagnetic (AF) pattern, no exchange bias occurred because of its canceled spin arrangement (AF1 or AF3 type) or insufficient thickness of AF phase for existence of spin-frustrations. These results should be advantageous for decreasing the switching field distribution on HDD.
|
Research Products
(12 results)
