| Project/Area Number |
26420676
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
Hoshina Takuya 東京工業大学, 物質理工学院, 助教 (80509399)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 強誘電体 / 酸窒化物 / 誘電特性 / 結晶 / テラヘルツ / 広帯域誘電特性 / 単結晶 / イオン分極 / エアロゾルデポジション法 |
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| Outline of Final Research Achievements |
In order to propose a method for design of ferroelectric materials, we synthesized some novel ferroelectric-related materials as case studies and tried to crystallographically explain the dielectric and ferroelectric properties. Especially, by measuring the dielectric permittivity of a novel silicate ferroelectric compound and mixed-anion dielectrics in a wide frequency range, it was possible to comprehensively understand the dielectric properties from the viewpoint of electronic structureand lattice vibration, etc. This research presents a research process that quantitatively connects the relationship among the crystal structure, lattice vibration, and dielectric properties, and therefore the process is thought to lead to a design method for the next generation ferroelectric materials.
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