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

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

3028

Lastpage

3032

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 Mg_xFe_3-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; Mg_xFe_3-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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.947057

Filename

947057