Investigation of ferroelectric tunnel effect by self-organized nano-crystals and realization of new memory application
| Project/Area Number |
24560374
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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 |
Electronic materials/Electric materials
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| Research Institution | Fukuoka University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | ナノ結晶 / 強誘電体 / スパッタ法 / 自己組織化 / 原子平坦 / ZnO / 電極膜 / SPM / 原子平坦面 / サファイア / 電気的特性 / BST / マイクロ波素子 / 電子セラミックス / トンネル電流 / 薄膜 |
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| Outline of Final Research Achievements |
New tunneling phenomena in nano-sized ferroeletcric thin films have been expected to apply for the universal memory with high density and without degradation. However, the phenomena have not been revealed for device applications, sufficiently. Thus, high quality ferroelectric nano-crystalline multilayers have been required for the development. In this study, newly developed sputtering technique was subjected to depositions of ferroelectric and metal nano-crystals. From the optimization of the deposition conditions and the improvement of sputtering equipments, high quality nano-crystals of several ferroelectric materials with uniform size and position can be obtained, in first step of this study. Consequently, the nano-sheet and their multilayer structure can also be fabricated, and nano-region and high current sensitivity observations in obtained specimens were also performed, successfully.
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Report
(5 results)
Research Products
(24 results)
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[Presentation] Yuta Tominaga, Takashi Nishida, Kosuke Takata2014
Author(s)
Growth of ferroelectric and conductive atomically flat layer on sapphire substrate for nanosize measurement of ferroelectric nanocrystal
Organizer
International Union of Materials Research Societies- The IUMRS International Conference in Asia 2014 (IUMRS-ICA2014)
Place of Presentation
Fukuoka university
Year and Date
2014-08-24 – 2014-08-30
Related Report
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[Book] 熱刺激電流を用いた材料・デバイス開発の最前線2016
Author(s)
岩本光正, 工藤一浩, 中村雅一, 松島敏則, 秦川江, 安達千波矢, 大橋昇, 吉田郵司, 山田俊樹, 大友明, 田口大, 佐藤一石, 串田一雅, 栗山一男, 西田貴司, 田中優実, 佐々木匠, 平山泰生, 吉田福蔵, 与名本欣樹, 秋永広幸, 角谷透, 野田周一, 島久
Total Pages
246
Publisher
シーエムシー出版
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