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| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedad Mexicana de Física A.C.
2020
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| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=57082931003 |
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| _version_ | 1866817166398980096 |
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| author | M. Rivera |
| author_facet | M. Rivera |
| contents | Complementary atomic force microscopy and magnetic force microscopy study for the magnetic transition of cobalt clusters onto gold substrates M. Rivera F. I. Martinez-Vado L. H. Mendoza-Huizar I. Betancourt Física, Astronomía y Matemáticas MFM Cobalt magnetic domains electrodeposition micromagnetic modelling Atomic and magnetic force microscopy were employed in order to investigate the local magnetic state of individual cobalt clusters electrodeposited onto gold electrodes. The analysis indicated that the diameter of the clusters was similar regardless of the potential formation, or growth stage, but the height and surface coverage changed as the potential augmented. Individual examination of the clusters showed that the height determined the magnetic transition from the single to the multi domain state. By using a theoretical single-domain ferromagnetic model in terms of the clusters dimensions, the magnetic exchange constant at different potential voltages was obtained, which was higher than the cobalt bulk value. In addition, a micromagnetic simulation study was employed to validate the experimental results, and it correctly confirmed the experimental magnetic transition. Moreover a fcc crystalline structure and some insights of the clusters growth mechanism on the gold surface were inferred from the results. 2020 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57082931003 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.1 Vol.66 |
| format | Artículo científico |
| id | redalyc_57082931003 |
| language | en |
| publishDate | 2020 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Complementary atomic force microscopy and magnetic force microscopy study for the magnetic transition of cobalt clusters onto gold substrates M. Rivera Física, Astronomía y Matemáticas MFM Cobalt magnetic domains electrodeposition micromagnetic modelling Complementary atomic force microscopy and magnetic force microscopy study for the magnetic transition of cobalt clusters onto gold substrates M. Rivera F. I. Martinez-Vado L. H. Mendoza-Huizar I. Betancourt Física, Astronomía y Matemáticas MFM Cobalt magnetic domains electrodeposition micromagnetic modelling Atomic and magnetic force microscopy were employed in order to investigate the local magnetic state of individual cobalt clusters electrodeposited onto gold electrodes. The analysis indicated that the diameter of the clusters was similar regardless of the potential formation, or growth stage, but the height and surface coverage changed as the potential augmented. Individual examination of the clusters showed that the height determined the magnetic transition from the single to the multi domain state. By using a theoretical single-domain ferromagnetic model in terms of the clusters dimensions, the magnetic exchange constant at different potential voltages was obtained, which was higher than the cobalt bulk value. In addition, a micromagnetic simulation study was employed to validate the experimental results, and it correctly confirmed the experimental magnetic transition. Moreover a fcc crystalline structure and some insights of the clusters growth mechanism on the gold surface were inferred from the results. 2020 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57082931003 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.1 Vol.66 |
| title | Complementary atomic force microscopy and magnetic force microscopy study for the magnetic transition of cobalt clusters onto gold substrates |
| topic | Física, Astronomía y Matemáticas MFM Cobalt magnetic domains electrodeposition micromagnetic modelling |
| url | https://www.redalyc.org/articulo.oa?id=57082931003 |