| Budget Amount *help |
¥155,610,000 (Direct Cost: ¥119,700,000、Indirect Cost: ¥35,910,000)
Fiscal Year 2017: ¥23,660,000 (Direct Cost: ¥18,200,000、Indirect Cost: ¥5,460,000)
Fiscal Year 2016: ¥21,580,000 (Direct Cost: ¥16,600,000、Indirect Cost: ¥4,980,000)
Fiscal Year 2015: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2014: ¥55,900,000 (Direct Cost: ¥43,000,000、Indirect Cost: ¥12,900,000)
Fiscal Year 2013: ¥37,440,000 (Direct Cost: ¥28,800,000、Indirect Cost: ¥8,640,000)
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| Outline of Final Research Achievements |
The main purpose in our project is to develop angle-resolved photoelectron spectroscopy (ARPES) which achieves the minimum temperature less than 1K and the highest energy-resolution not reached before, and elucidate the mechanism of unconventional low-temperature superconductors. We have developed the state-of-the-art ARPES equipped with He3 cryostat, which enables an extremely low temperatures less than 1K. We have also developed measurement software which incorporates a photoelectric analyzer and a sCMOS-type camera (not a conventional CCD camera) to allow measurements at a high-speed frame rate. We have demonstrated that an iron-based superconductor is a topological superconductor. In addition, we have succeeded in observation of detailed superconducting gaps in the spin polarization band for the topological material grown as a film on a bulk superconductor.
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