Title :
Magnetic aftereffects in magnesium ferrites
Author :
Alejos, Óscar ; De Francisco, Carlos ; Munoz, José M. ; Hernández-Gómez, Pablo ; Torres, Carlos ; Hisatake, Keizo ; Matsubara, Ikuya
Author_Institution :
Dept. de Electr. y Electron., Valladolid Univ., Spain
fDate :
7/1/2001 12:00:00 AM
Abstract :
We report a study of aftereffect processes in magnetite with magnesium substitutions. The study observed the processes by means of disaccommodation techniques. We have recorded the time evolution of the initial magnetic susceptibility after sample demagnetization of polycrystalline specimens with nominal composition MgxFe3-xO4, 0⩽×⩽1 in the temperature range from 200 K to 500 K. We find that magnesium substitutions reveal interesting results about magnetic aftereffects in oxide spinels
Keywords :
demagnetisation; ferrites; magnesium compounds; magnetic aftereffect; magnetic susceptibility; (MgFe)3O4; 200 to 500 K; MgxFe3-xO4; demagnetization; disaccommodation spectra; magnesium ferrite; magnesium substitution; magnetic aftereffect; magnetic susceptibility; oxide spinel; polycrystalline magnetite; Demagnetization; Ferrites; Iron; Lattices; Magnesium; Magnetic anisotropy; Magnetic domain walls; Magnetic domains; Magnetic materials; Perpendicular magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
