Title :
High Coercivity of Co-ferrite films prepared by sol-gel method
Author :
Okazaki, Y. ; Ohashi, H. ; Ohya, Y. ; Yanase, S. ; Hashi, S.
Author_Institution :
Gifu Univ., Gifu
Abstract :
This paper investigates the magnetic properties of Co-ferrite (CoFe2O4) thin films deposited by sol-gel method with spin coating, especially coercivity related to the nanostructure of the films varying film thickness and annealing temperature. High coersivity of around 6 kOe and high magnetization of over 250 emu/cm3 were obtained in these thin films. The microstructure of the films with high coercivity were columnar that appeared 875K which showed magnetic anisotropy.
Keywords :
annealing; cobalt compounds; coercive force; ferrites; magnetic anisotropy; magnetic thin films; nanostructured materials; sol-gel processing; spin coating; CoFe2O4; annealing; ferrite thin films; high coercivity; magnetic anisotropy; microstructure; nanostructure; sol-gel method; spin coating; Annealing; Coatings; Coercive force; Magnetic films; Magnetic properties; Magnetization; Microstructure; Sputtering; Temperature; Transistors;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.375799
