| Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2017: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2016: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
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| Outline of Final Research Achievements |
We investigated the irradiation effects on the conductive and magnetic properties of high-temperature cuprate superconductors with different compositions upon irradiation of ionizing radiations. We observed a rise in the superconductive transition temperature after X-ray irradiation, and this result was consistent with the change in the magnetic properties induced by the irradiation. These results are owing to the hole doping by the irradiation, which generates electron-hole pairs and subsequently electrons are trapped at defect sites such as oxygen vacancies. We successfully demonstrated that the enhancement in the supercnductive properties can be achieved by irradiation of X-ray or gamma-ray, which have high permeability in bulk materials.
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