Tailoring the magnetic properties of Ni 81 Fe 19 thin films by varying their thickness
| Autor: | Alejandro Pereira, Juan Escrig, Lizardo Pérez-Erices, Daniela Alburquenque |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Permalloy
Materials science Magnetism Nanotechnology 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Atomic layer deposition Crystallinity Ferromagnetism Phase (matter) 0103 physical sciences Deposition (phase transition) Thin film Composite material 010306 general physics 0210 nano-technology |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 441:656-659 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2017.06.066 |
| Popis: | Ni81Fe19Oy thin films with different thicknesses were obtained by atomic layer deposition. After a thermal reduction process, Ni81Fe19Oy films were converted to their strong Ni81Fe19 ferromagnetic phase, usually known as Permalloy. The different thicknesses were obtained by considering 500, 1000, 1500 and 2000 supercycles, which are defined as a cycle of NiCp2/O3 followed by another cycle of FeCp2/O3. The samples were characterized before and after the thermal reduction process with respect to their crystallinity, morphology and magnetism. In particular, the thermally reduced samples exhibit holes whose sizes increase significantly as the thickness of the samples also increases, affecting their magnetic behaviour. As Permalloy is widely used in many applications, its synthesis through atomic layer deposition is expected to introduce comparative advantages over other synthesis processes, opening up new possibilities for nanoelectronic devices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect