| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
For control of magneto-optical Kerr effect (MOKE) by applying electric field, two methods were investigated. 1. In laminated film with newly developed (Bi,La)(Fe,Co)O3 multiferroic thin film with perpendicular magnetic anisotropy (PMA) / [Co/Pd]n metallic ferromagnetic multilayer, magnetization reversal of [Co/Pd]n multilayer was performed by applying electric field to the laminated film through the "electric field driven magnetization switching" of (Bi,La)(Fe,Co)O3 film. This indicates that we can control the magnetization direction of metallic ferromagnetic with high MOKE fabricated onto (Bi,La)(Fe,Co)O3 multiferroic thin film by applying electric field. 2. In newly developed (Bi,Nd)(Fe,Co)O3 multiferroic thin film, PMA, high saturation magnetization of 140 emu/cm3, which is 2 times larger than (Bi,La)(Fe,Co)O3, and large MOKE angle of about 0.3 degree with wide range wave length were obtained. This indicates that we can control the MOKE directly by applying electric field.
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