| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Outline of Final Research Achievements |
Application of pressure is one of promising techniques to control the physical properties of materials, such as superconductivity or domain structures of charge density wave states. Although scanning tunneling microscopy (STM) is a powerful technique which realizes the electronic states measurements with atomic resolution, the measurements under pressure is impossible. In this study, we developed STM which enables to measure two dimensional materials under uniaxial stress by using a piezoelectric actuator.
By gluing the two dimensional materials such as transition metal dichacogenides (TMDC) on a multilayer piezoelectric element, we succeeded to observe the surface structure with atomic resolution under the uniaxial stress from room temperature down to 4.2 K. Although the uniaxial stress applied to the samples was not enough to change the domain structures in TMDC, this study extended the understanding of domain structures in TMDC.
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