| Budget Amount *help |
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2016: ¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
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| Outline of Final Research Achievements |
We observed a sharp upturn in the measurements on the temperature dependence of the parallel upper critical field for multiple monolayer films with layer-dependent Rashba spin-orbit interactions. Using numerical calculations with the Bogoliubov-de Gennes equations, we found that it corresponds to a transition from a complex-stripe phase to a helical phase. Our findings not only provide experimental evidence supporting the existence of the complex-stripe phase and the helical phase, but also offer a new platform to study non-trivial superconductivity caused by symmetry breaking, including odd-parity pair-density-wave superconductivity and 2D topological superconductivity predicted for multilayer systems that are made up of the 2D Rashba superconductors.
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