| Budget Amount *help |
¥21,840,000 (Direct Cost: ¥16,800,000、Indirect Cost: ¥5,040,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2011: ¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
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| 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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