| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
Fabrication of a novel light element interstitial perpendicularly magnetized ferromagnetic metal films without rare elements are conducted. As a result of fabricating CoxMn4-xN films and evaluating the magnetic properties, the magnetic anisotropy and saturation magnetization can be controlled by the Co/Mn ratio. It becomes perpendicularly magnetized films at x≦0.8 and a saturation magnetization near x=0.8 is almost zero. As a result of characterization by x-ray magnetic circular dichroism measurements, it is revealed that Co atoms preferentially occupy the corner sites of the anti-perovskite lattice and have spin magnetic moments opposite to those of the corner Mn atoms. This is the origin of the magnetization compensation near x=0.8, and it can be said that this material is suitable for spintronics applications. Deployment on silicon substrates has become a future issue.
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