Development of functional iron titanium complex oxide films by control of mixed-valence state
| Project/Area Number |
23350092
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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 |
Inorganic materials/Physical properties
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| Research Institution | Okayama University |
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Principal Investigator |
FUJII Tatsuo 岡山大学, 自然科学研究科, 教授 (10222259)
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| Co-Investigator(Kenkyū-buntansha) |
NAKANISHI Makoto 岡山大学, 大学院自然科学研究科, 助教 (10584085)
ICHIKAWA Kazunori 神戸市立工業高等専門学校, 准教授 (90509936)
TAKADA Jun 岡山大学, 大学院自然科学研究科, 教授 (60093259)
中西 真 岡山大学, 自然科学研究科, 助教 (10284085)
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| Project Period (FY) |
2011-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥20,150,000 (Direct Cost: ¥15,500,000、Indirect Cost: ¥4,650,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2011: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
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| Keywords | 鉄チタン複酸化物 / 混合原子価状態 / 酸化物磁性半導体 / エピタキシャル薄膜 / スパッタ法 / 高分解能電子顕微鏡観察 / イルメナイト / 希土類鉄酸化物 / ゲルマニウム置換 / 高圧合成 / メスバウアー分光 / 高分解能TEM / ホール測定 / X線構造解析 / 異方性 / ヘマタイト / ホール効果 / 微細加工 |
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| Outline of Final Research Achievements |
In this study, we synthesized a single-phase of various mixed valence oxides including a hematite - ilmenite solid solution system, and surveyed their magnetic and electronic properties. Epitaxial thin films of their oxides were fabricated successfully in order to reveal and control the effects of crystal orientation and a lattice distortion on their structural and charge transfer properties. The morphology, microstructure and electric transport properties of hematite - ilmenite solid solution films were strongly influenced by the crystalline orientation. Not only the structural anisotropy of crystalline solids but also the lattice mismatch between the substrates and films played the important roles in their properties.
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Report
(5 results)
Research Products
(22 results)
