| Budget Amount *help |
¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2016: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
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| Outline of Final Research Achievements |
Spin-orbit coupling (SOC) in matter strongly affects an electron’s spin which points to various directions depending on the type of SOC interaction and crystal symmetry. In this study, we have developed our spin-resolved photoemission spectrometer and, by using this, studied the electronic structure of high functional materials in which a relation between spin and momentum plays an important role in this functionality. Consequently, we have observed various intriguing electronic states; Surface Fermi arc in Weyl semimetals, As 4p hole-band in dilute magnetic semiconductor GaMnAs, one dimensional edge state in heavy metal film, unexpected surface state in line node semimetals, and so on. Based on the above results, we conclude that this project has succeeded in establishing of new topological materials and unraveling of mechanism of ferromagnetism in GaMnAs.
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