2013 Fiscal Year Final Research Report
Magnetization reversal control of FePt perpendicular media by energy assist
Project/Area Number |
23686100
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Single-year Grants |
Research Field |
Structural/Functional materials
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Research Institution | National Institute for Materials Science |
Principal Investigator |
TAKAHASHI Yukiko 独立行政法人物質・材料研究機構, 磁性材料ユニット, 主幹研究員 (50421392)
|
Project Period (FY) |
2011-04-01 – 2014-03-31
|
Keywords | エネルギーアシスト磁化反転 |
Research Abstract |
We made FePt based granular film with various nonmagnetic matrix in order to realize well separated microstructure with the columnar structure. By using Cr2O3 as a nonmagnetic matrix, we successfully obtained well-isolated microstructure with the average particle size of 6 nm and the aspect ratio more than 1.5 in FePt-Cr2O3 granular film. It showed the perpendicular Hc of 20 kOe with strong perpendicular anisotropy. In addition, by applying RF magnetic field Hc reduction from 6 kOe to 4.5 kOe was observed in FePt-C granular film with the perpendicular anisotropy of 1*107 erg/cc.
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Research Products
(13 results)