Magnetostatic Interaction in Fe-Co Nanowires
| Autor: | Victor Vega, Jose A. Garcia, L. Elbaile, R. D. Crespo |
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| Rok vydání: | 2012 |
| Předmět: |
Diffraction
Materials science Article Subject Condensed matter physics Alumina Nanowire Physics::Optics Coercivity Magnetic-Properties Magnetic field Self-Assembled Arrays Condensed Matter::Materials Science Crystallography Hysteresis Dipole Remanence lcsh:Technology (General) lcsh:T1-995 General Materials Science Dependence Anisotropy |
| Zdroj: | RUO. Repositorio Institucional de la Universidad de Oviedo instname Journal of Nanomaterials, Vol 2012 (2012) |
| ISSN: | 1687-4129 1687-4110 |
| DOI: | 10.1155/2012/198453 |
| Popis: | Arrays of Fe-Co alloy nanowires with diameter around 35 nm and several micrometers in length have been synthesized by codepositing Fe and Co into porous anodic alumina. The morphology, structure, and magnetic properties of the nanowires (hysteresis loops and remanence curves) were characterized by SEM, TEM, X-ray diffraction (XRD), and VSM, respectively. The XRD patterns indicate that the Fe-Co nanowires present a body-centered cubic (bcc) structure and a preferred (110) orientation perpendicular to the template surface. From the hysteresis loops obtained with the magnetic field applied in the axis direction of the nanowires, we can observe that the coercive field slightly decreases when the nanowire length increases. This magnetic behaviour is analyzed considering the shape anisotropy and the dipolar interactions among nanowires. |
| Databáze: | OpenAIRE |
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