Detection of sub-pico-meter-scale atomic displacement in ferroelectric phase of multiferroic materials
| Project/Area Number |
23654098
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics I
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| Research Institution | Tohoku University |
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Principal Investigator |
KIMURA Hiroyuki 東北大学, 多元物質科学研究所, 准教授 (50312658)
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| Co-Investigator(Renkei-kenkyūsha) |
NODA Yukio 東北大学, 多元物質科学研究所, 教授 (80127274)
KIYANAGI Ryoji 独立行政法人日本原子力研究開発機構, J-PARCセンター, 研究員 (50521770)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 磁気誘起強誘電性 / 精密結晶構造解析 / 原子変位 / X線 |
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| Research Abstract |
Sub-pico scale atomic displacement contributing to electric polarization in multiferroic material of YMn2O5 has been detected. We developed the measurement program for avoiding “spurious" signal coming from multiple scattering, which enables to extract intrinsic signals in ferroelectric phase. We have found the order parameter of the ferroelectric displacement of which evolution follows the temperature dependence of the electric polarization.
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Report
(3 results)
Research Products
(18 results)
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[Presentation] マルチフェロイック物質YMn_2O_5の磁気誘起強誘電相における原子変位2013
Author(s)
中野隆裕,木村宏之,堀尾哲,坂倉輝俊,野田幸男,中尾朗子,竹中康之,岸 俊二,中尾裕則,村上洋一,石川喜久
Organizer
日本物理学会年次大会
Year and Date
2013-03-26
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