Title :
Nanomagnetism and domain structure of sintered nickel-zinc ferrites studied by magnetic force microscopy
Author_Institution :
Dept. de Engenharia Metalurgica e de Materiais, Univ. Fed. de Minas Gerais, Belo Horizonte, Brazil
Abstract :
The nanomagnetic structure of hydrothermal NiZn ferrites sintered at various temperatures was studied in this work through magnetic force microscopy using different magnetically characterized tips. The magnetic patterns according to the tip employed were correlated to the magnetic induced field generated by these different coated tips. Nickel ferrites were produced at 200°C by hydrothermal synthesis and sintered at temperatures ranging from 1100°C to 1400°C.
Keywords :
ferrites; magnetic domains; magnetic force microscopy; magnetic structure; nanostructured materials; nickel compounds; zinc compounds; 1100 to 1400 degC; 200 degC; Ni0.34Zn0.60Fe2.06O4; domain structure; hydrothermal NiZn ferrites; hydrothermal synthesis; magnetic force microscopy; magnetic induced field; magnetic patterns; nanomagnetic structure; nanomagnetism; nickel-zinc ferrites; sintering; Atomic force microscopy; Ferrites; Magnetic anisotropy; Magnetic domain walls; Magnetic domains; Magnetic force microscopy; Magnetic forces; Nanostructures; Perpendicular magnetic anisotropy; Temperature;
Conference_Titel :
Nanotechnology, 2004. 4th IEEE Conference on
Print_ISBN :
0-7803-8536-5
DOI :
10.1109/NANO.2004.1392443
