Magnetic properties of granular cylindrical Fe65Pd35 nanowires

APREA, M. SOLEDAD; JULIETA S. RIVA; BERCOFF, PAULA G.; VÁZQUEZ, MANUEL

Virtual

Congreso; IEEE Around-the-Clock Around-the-Globe (AtC-AtG) Magnetics Conference 2022?; 2022

IEEE Magnetics Society

Iron-palladium alloys are studied because of their interest in different areas, depending on their chemical and physical properties. In this work, Fe65Pd35 nanowires (NWs) were synthesized in commercial alumina porous templates by potentiostatic electrodeposition. The NWs morphology, composition, and crystalline structure were analyzed by SEM, TEM, EDS and XRD. Fe65Pd35 NWs are 10 μm long and 200 nm in diameter, with a granular microstructure. Magnetic properties were investigated by measuring hysteresis loops at different temperatures and ZFC-FC curves. The hysteresis loops were fitted using the law of approach to saturation, obtaining the values of the anisotropy field and the effective anisotropy constant at different temperatures (Fig. 1b). The blocking temperature dependence on the magnetic field was analysed using a modified random anisotropy model. The results indicate interactions between particles inside the NWs up to nearest neighbours.