Influence of the degree of inversion on magnetic properties of MnFe2O4

Author

Simsa, Zdenek ; Brabers, Victor A M

Author_Institution

Czechoslovak Academy of Sciences, Prague, Czechoslovakia

Volume

11

Issue

5

fYear

1975

fDate

9/1/1975 12:00:00 AM

Firstpage

1303

Lastpage

1305

Abstract

The cation distribution of single crystal manganese ferrites Mn1-yFey[MnyFe2-y]O4with $0.06 \\leq y \\leq 0.24$ was modified by appropriate heat treatment at temperatures 300-600°C. With these samples the Curie temperature, the magnetocrystalline anisotropy, the spontaneous magnetization and the differential susceptibility at high magnetic fields were studied. The experiments enabled us to determine the magnitude of the molecular field coefficient NMn(A)-Fe(B)= 89 and to estimate the main part of the contribution to the magnetocrystalline anisotropy in MnFe2O4which was found to come from Fe³⁺in octahedral sites. High field susceptibility measurements confirmed the applicability of the noncolinear arrangement of magnetic moments in MnFe2O4which supposes that Mn(B) spins make an angle of 53° with the direction of the total magnetization.

Keywords

Ferrite materials/devices; Magnetic thermal factors; Anisotropic magnetoresistance; Ferrites; Heat treatment; Iron; Magnetic anisotropy; Magnetic properties; Magnetic susceptibility; Magnetization; Manganese; Perpendicular magnetic anisotropy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1975.1058861

Filename

1058861