Exchange bias and exchange spring effects in Fe/CrN bilayers
| Autor: | Gregorio H. Cocoletzi, Andrew Foley, Fengyuan Yang, Keng-Yuan Meng, Noboru Takeuchi, R. Ponce-Pérez, Khan Alam, Arthur R. Smith |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Acoustics and Ultrasonics Condensed matter physics Field (physics) Bilayer 02 engineering and technology Spring (mathematics) Coercivity 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Exchange bias chemistry 0103 physical sciences Thin film 0210 nano-technology Chromium nitride Molecular beam epitaxy |
| Zdroj: | Journal of Physics D: Applied Physics. 53:125001 |
| ISSN: | 1361-6463 0022-3727 |
| Popis: | We studied exchange bias and exchange spring effects in magnetic bilayer thin films of Fe and CrN grown by molecular beam epitaxy. First, the relationships between exchange bias, coercivity, and blocking temperature and the Fe and CrN layers thicknesses are studied. Second, the exchange spring effect is observed and studied in all samples. The exchange spring breaks free at critical applied field strengths while creating planar domain walls at lower applied fields. First-principles calculations are performed to understand the magnetic interactions between the Fe and CrN layers at their interfaces. The calculations are key to understanding the experimental observations. |
| Databáze: | OpenAIRE |
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