Dependence of the magnetic disaccommodation spectrum of YIG with sintering temperature

Author

Torres, L. ; Zazo, M. ; Iniguez, J. ; de Francisco, C. ; Munoz, J.M.

Author_Institution

Dept. de Fisica Aplicada, Salamanca Univ., Spain

Volume

30

Issue

6

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

4903

Lastpage

4905

Abstract

Magnetic disaccommodation spectra (77-420 K) for YIG polycrystalline samples sintered during 8 hours in air atmosphere at different sintering temperatures ranging from 1350°C to 1450°C are presented, Samples sintered at temperatures from 1350°C to 1415°C present a relaxation process around 125 K, its amplitude decreases with increasing sintering temperature and its activation energy is close to 0.34 eV, For samples sintered from 1415°C to 1450°C the relaxation shifts to higher temperatures and the activation energy is close to 0.4 eV, No accommodation processes are observed. This behavior is understood in terms of induced anisotropy effects of electronic origin similar to those observed in spinel ferrites

Keywords

garnets; induced anisotropy (magnetic); magnetic aftereffect; magnetic anisotropy; sintering; yttrium compounds; 77 to 420 K; YFe5O12; YIG; induced anisotropy effects; magnetic disaccommodation spectrum; polycrystalline; relaxation; sintering temperature; Anisotropic magnetoresistance; Atmosphere; Ferrites; Magnetic anisotropy; Magnetic materials; Permeability measurement; Perpendicular magnetic anisotropy; Powders; Temperature dependence; Temperature distribution;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.334260

Filename

334260