2017 Fiscal Year Final Research Report
Mechanism of electric field generation of magnon-soliton and its transmission properties
| 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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| 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 |
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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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| Free Research Field |
ナノ磁性
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