Journal
AIP ADVANCES
Volume 11, Issue 3, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/9.0000075
Keywords
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Funding
- Japan Society for the Promotion of Science (JSPS) [26286039]
- Cooperative Research Program of NJRC Mater. Dev.
- OCU Strategic Research Grant 2018 for top priority researches
- Grants-in-Aid for Scientific Research [26286039] Funding Source: KAKEN
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The study explores the temperature dependence of electromotive force properties in VO2/Ni80Fe20 bilayer junctions under ferromagnetic resonance (FMR), demonstrating spin injection from a Ni80Fe20 film into a VO2 film across the MIT temperature of the VO2 film.
A vanadium dioxide VO2 film shows metal-insulator transition (MIT) induced by changing environmental temperature. We report the temperature dependence of electromotive force properties generated in VO2/Ni80Fe20 bilayer junctions under the ferromagnetic resonance (FMR) of the Ni80Fe20 layer. An electromotive force generated in a VO2/Ni80Fe20 bilayer junction under the FMR showed a small change across the MIT temperature of the VO2 film, while the VO2 film resistance drastically changed. This behavior was not only explained with the temperature dependence of the electromotive force property generated in the Ni80Fe20 film itself under the FMR, but also with the generated electromotive forces due to the inverse spin-Hall effect (ISHE) in the VO2 film under the FMR of the Ni80Fe20 film. That is, we successfully demonstrated the spin injection from a Ni80Fe20 film into a VO2 film across the MIT temperature of the VO2 film.
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