Study on the giant ferroelectric phenomenon by corroboration between first-principles calculations and Raman scattering
| Project/Area Number |
21560708
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | 一般財団法人ファインセラミックスセンター (2011)
Japan Fine Ceramics Center (2009-2010) |
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Principal Investigator |
MORIWAKE Hiroki 一般財団法人ファインセラミックスセンター, 主席研究員 (40450853)
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| Co-Investigator(Renkei-kenkyūsha) |
TANIGUCHI Hiroki 東京工業大学, 応用セラミックス研究所, 助教 (80422525)
HASHIMOTO Tamotsu 独立行政法人産業技術総合研究所, ナノシステム研究部門, 研究員 (80357772)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 誘電体 / 強誘電体 / 第一原理計算 / ラマン散乱 / フォノン / 相転移 |
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| Research Abstract |
Aim of this study is to reveal the atomistic mechanism of the giant ferroelectric phenomenon by corroboration between first-principles calculations and precise experiments. Using the method which was developed by this study, we revealed ferroelectric structure of CdTiO3.In this study, we determined ferroelectric soft-mode and its displacement vector of CdTiO3.Using this information we determined its ferroelectric structure.
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Report
(4 results)
Research Products
(27 results)
