| Budget Amount *help |
¥43,680,000 (Direct Cost: ¥33,600,000、Indirect Cost: ¥10,080,000)
Fiscal Year 2021: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2020: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2019: ¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Fiscal Year 2018: ¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
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| Outline of Final Research Achievements |
In this study, we have aimed to develop a new ferromagnetic 2D v-DW atomic layer material and investigated its physical properties from various aspects to elucidate the origin of its magnetization properties. As a result, we succeeded in developing a new 2D v-DW magnetic material, Mn4Bi2Te7, and clarified that the relationship between the magnetization properties and the band structure of the surface Dirac electrons cannot be explained by conventional theories. Furthermore, in the sandwich structure of MnBi2Se4/Bi2Se3, the magnetic interaction between neighboring magnetic atoms and its mediation by the nonmagnetic element Se were demonstrated for the first time. Regarding the controversial magnetization properties of VSe2, it was clarified that VSe2 is not ferromagnetic even at low temperatures, but exhibits short-range order and antiferromagnetic behavior.
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