| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2013: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2012: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2011: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Outline of Final Research Achievements |
In recently, it has been attracted much interest in the superconductivity of surface charging on several insulators, which is induced by strong electrical field of an electrical double layer. In this study, we investigate the electronic state of it; especially we take the surface of diamond as an example. By using the first-principles calculations, we obtain the band structure and the profile of hole density near the surface of the diamond under the electrical field.
It indicates that induced hole concentration as a carrier reaches up to 1 percent of total atoms of the system under realistic situation. The result suggests the possibility of the electric-field-driven superconductivity of the diamond with the electrical double layer at sufficiently low temperature.
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