Stabilization and tuning of perpendicular magnetic anisotropy in room-temperature ferromagnetic transparent CeO2 films
| Autor: | Hugo F. Jurca, J. Zarpellon, M. D. Martins, D. H. Mosca, Cyrile Deranlot, Irineu Mazzaro, Nicholas Figueiredo-Prestes, Ronei Cardoso de Oliveira, Daniel da Silva Costa, J.-M. George, Mariana Andrade Boense Tavares |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Spintronics business.industry Magnetism Stacking General Physics and Astronomy chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Inductive coupling Nanocrystalline material chemistry Ferromagnetism Remanence 0103 physical sciences Optoelectronics 0210 nano-technology business Cobalt |
| Zdroj: | Journal of Applied Physics. 126:183903 |
| ISSN: | 1089-7550 0021-8979 |
| Popis: | The development of multifunctional materials that combine optical transparency to room-temperature magnetism is still a great challenge. Here, we present an investigation on the room-temperature ferromagnetism of ceria (CeO 2) nanocrystalline films integrated to cobalt and platinum multilayered films (Co/Pt-ML) with perpendicular magnetic anisotropy (PMA). The magnetic coupling between Co/Pt-ML and CeO 2 films spaced by Pt interlayers with different thicknesses (from 3 nm to 20 nm) enable stabilization and tuning of PMA along with the stacking at remanence. CeO 2 films on the Co/Pt-ML films exhibit domain structures consisting of nonconnected labyrinthine patterns dominated by protruding fingers similar to that of individual Co/Pt-ML films. Our present results demonstrate that the PMA of Co/Pt-ML films can be used to exploit the room-temperature ferromagnetism of transparent CeO 2 films and their multifunctionalities for emerging transparent electronics and spintronics such as high-density magnetic devices.The development of multifunctional materials that combine optical transparency to room-temperature magnetism is still a great challenge. Here, we present an investigation on the room-temperature ferromagnetism of ceria (CeO 2) nanocrystalline films integrated to cobalt and platinum multilayered films (Co/Pt-ML) with perpendicular magnetic anisotropy (PMA). The magnetic coupling between Co/Pt-ML and CeO 2 films spaced by Pt interlayers with different thicknesses (from 3 nm to 20 nm) enable stabilization and tuning of PMA along with the stacking at remanence. CeO 2 films on the Co/Pt-ML films exhibit domain structures consisting of nonconnected labyrinthine patterns dominated by protruding fingers similar to that of individual Co/Pt-ML films. Our present results demonstrate that the PMA of Co/Pt-ML films can be used to exploit the room-temperature ferromagnetism of transparent CeO 2 films and their multifunctionalities for emerging transparent electronics and spintronics such as high-density mag... |
| Databáze: | OpenAIRE |
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