INTECIN 20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Magnetic properties of cobalt ferrite octahedrons obtained of granular nanotubes growing on bacterial nanocellulose
Autor/es:
C. L. LONDOÑO CALDERÓN; L. G. PAMPILLO; S. MENCHACA NAL
Lugar:
La Plata
Reunión:
Encuentro; Topology in Magnetism: Theory Meets Experiments 2019; 2019
Resumen:
We present an in-depth magnetic study of polycrystalline, microstain-free, magnetic, and thermally stable CoFe2O4 octahedrons.Nanoparticles were synthesized from granular CoFe2O4 nanotubes growing on bacterial nanocellulose and annealed at T=1273 K. SEM,XRD, and VSM were used to investigate the morphology, structure and magnetic properties of the octahedral particles. The resultsshow a change of the magnetization saturation and magnetic anisotropy around 150 K, associated with a First Order MagnetizationProcess. ZFC-FC curves show an irreversible branching temperature, which is highly sensitive to the applied magnetic field. In contrast,the temperature for the maximal magnetization value in the ZFC curves, change slightly with the external applied magnetic field.
