| Budget Amount *help |
¥24,180,000 (Direct Cost: ¥18,600,000、Indirect Cost: ¥5,580,000)
Fiscal Year 2017: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2014: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
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| Outline of Final Research Achievements |
The objectives of this research is to develop advanced physical properties and functionalities by controlling a bistable property. First, we focused on RbMnFe Prussian blue analogue, which shows a temperature-induced charge-transfer phase transition, and studied a metal doping effect on its phase transition temperature. Then, theoretical interpretation for the Raman spectra before and after the electric-field-induced phase transition of this material was investigated. Furthermore, the optical switching of the intensity of second harmonic light was successfully observed in this material.
Theoretical calculations were performed on metal oxides having bistability at room temperature. The result indicated that the energy barrier between the metastable and stable phases can be controlled by applying the external field. This research gives us an important knowledge for the design of a high efficient external-field-response switching material.
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