Microscopic mechanism of electric field-induced domain switching in manganese oxides
| Project/Area Number |
23360295
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural/Functional materials
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SHINDO Daisuke 東北大学, 多元物質科学研究所, 教授 (20154396)
AKASE Zentaro 東北大学, 多元物質科学研究所, 助教 (90372317)
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| Co-Investigator(Renkei-kenkyūsha) |
ARIMA Takahisa 東京大学, 大学院・新領域創成科学研究科, 教授 (90232066)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2013: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2011: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
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| Keywords | 電子顕微鏡 / 電荷軌道整列 / 構造相転移 / ドメイン構造 / 外場 / 組織形成 / 組織制御 / 酸化物 / 相変態 / Mn酸化物 / V酸化物 / 電荷・軌道整列 / 磁区 / ドメインエンジニアリング / 界面構造 / マンガン酸化物 / バナジウム酸化物 |
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| Research Abstract |
Transition metal oxides, such as manganese oxides and iron oxides, undergo charge/orbital ordering upon cooling, which is type of structural phase transformations. Researchers are interested in controlling the microstructure due to charge/orbital ordering (i.e., charge/orbital domains) by using electric field, magnetic field, and pressure. We attempted to reveal the mechanism underlying the external field-induced domain switching by using advanced techniques of transmission electron microscopy.
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Report
(4 results)
Research Products
(46 results)
