| Project/Area Number |
16K14381
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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 |
Inorganic materials/Physical properties
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | マルチフェロイクス / マグノニクス / スピントロニクス / ナノ磁性 / 磁性 / スピンエレクトロニクス |
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| Outline of Final Research Achievements |
The purpose of this study is to establish a basis of generating magnons and controlling its transmission properties by an electric field. Epitaxial growth of perpendicularly magnetized [Cu/Ni] multilayers and [Co/Ni] multilayers was achieved on ferroelectric BaTiO3 substrates. We have observed clear effects of the structural phase transitions of BaTiO3 and electric fields on the magnetic anisotropy of these perpendicularly magnetized multilayers. Moreover, we have shown distinct difference of the ferromagnetic resonance frequencies and the group velocities of magnons between perpendicularly magnetized [Cu/Ni] multilayers and in-plane magnetized Ni layers, demonstrating that the transmission properties of magnons can be manipulated by an electric field.
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