| Project/Area Number |
25420295
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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 | Nihon University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
YAMAMOTO Hiroshi 日本大学, 理工学部, 教授 (90130632)
HASHIMOTO Takuya 日本大学, 文理学部, 教授 (20212136)
TAKASE Kouichi 日本大学, 理工学部, 教授 (10297781)
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| Co-Investigator(Renkei-kenkyūsha) |
TSUKAMOTO Arata 日本大学, 理工学部, 教授 (30318365)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 電気磁気効果 / マルチフェロイック / 酸化物積層膜 / スパッタ法 / パルスレーザー堆積法 / ヘテロ界面 / 電界印加型磁気特性制御 / 新規物質設計 / 人工超格子 / 電界印加磁気特性制御 / Cr2O3 / 交換バイアス磁場 / 酸化物人工超格子 / 超高密度ターゲット / ペチーニ法 |
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| Outline of Final Research Achievements |
The purpose of this research is to control and/or reverse the magnetization with electric field applied. In the [Pt/Co]Pt//r-oriented Cr2O3 multilayer, large exchange bias field (HEB) is observed. The HEB reverses after magnetoelectric field cooling changing the direction of magnetic field from plus to minus. In the [BiMO3/CaBO3(M=Mn, Fe、B=Fe, Mn) superlattices, high quality films are synthesized by pulsed laser deposition method using highly dense targets prepared by Pechini method. The superlattices are weak ferromagnetic materials althogh the used materials are antiferromagnetic. The origin of the ferromagnetic coupling is identified at the interface of the superlatttices. These results are quite important achievement to lead to the magnetization reversal with electric field applied.
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