Study on spin arrangement in two dimensional ferromagnetic-antiferromagnetic nanostructure
| Project/Area Number |
22760224
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Akita University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| 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 |
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| 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.
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Report
(3 results)
Research Products
(23 results)
