| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Research Abstract |
It is discovered that the power law dependence of the ac ionic conductivity observed in ion conducting glasses is related with the medium range structure of the glasses. The result indicates that the universality of the power law exponent observed in many materials contains information of the pattern of the potential profile at intermediate length scales. By analyzing the photodoping phenomena observed in amorphous chalcogenides from the point of view of fragility, it was discovered that the amount of Ag doped is maxima at the composition where the fragility of Ge-S is minimum. It is discovered that the nonlinear optical constant of ionic conducting glasses is very large compared with other glasses. The origin of such a behavior has been studied from a chemical bond point of view. The study has revealed the importance of the Ag d-electrons, and that the mechanism of ion transport based on bond fluctuation processes plays also a fundamental role in the photoinduced phenomena.
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