| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
A goal of the present study is the fabrication of artificial superlattices based on Bi-base perovskite oxides to realize multiferroic materials above room temperature. The principal problems for it are two. One is that the superlattices are too thin to reveal spontaneous polarization large enough to be observed. The other is that they only have by far smaller magnetization than expected from the theory. To solve these problems, the method of UV-asshisted atomic layer deposition (UV-ALD) was developed. Using this method, the growth temperature of superlattices was greatly reduced and the magnetization at room temperature increased. It is likely that this method is useful for other matterial systems.
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