Effect of Sn addition on the magnetic aftereffects of yttrium iron garnets

Author

Torres, Carlos ; Hernández-Gómez, Pablo ; Muñoz, José María ; De Francisco, Carlos ; Alejos, Oscar ; Hisatake, Keizo ; Matsubara, Ikuya

Author_Institution

Dept. de Electr. y Electron., Univ. de Valladolid, Spain

Volume

39

Issue

5

fYear

2003

Firstpage

3115

Lastpage

3117

Abstract

The magnetic aftereffects phenomena in polycrystalline Sn doped yttrium iron garnet (YIG) samples with nominal composition Y₃Fe_5-xSn_xO₁₂ (0 ≤ x ≤ 1) are presented. For this purpose, we have analyzed the time evolution of the initial magnetic permeability after sample demagnetization in the temperature range from 80 to 500 K. We have found that the addition of these ions in the lattice promotes the apparition of new relaxation processes at high temperatures, as well as accommodation processes at low temperatures. The mechanisms responsible for both types of processes have been finally discussed.

Keywords

demagnetisation; garnets; magnetic aftereffect; magnetic permeability; magnetic relaxation; stoichiometry; yttrium compounds; 80 to 500 K; Sn addition; Y₃Fe_5-xSn_xO₁₂; YFe5O12Sn5O12; YIG; YIGSn₅O₁₂; accommodation processes; initial magnetic permeability; low temperatures; magnetic aftereffects; polycrystalline Sn doped yttrium iron garnet; relaxation processes; sample demagnetization; time evolution; yttrium iron garnets; Garnets; Iron; Lattices; Magnetic domain walls; Magnetic domains; Magnetic materials; Magnetosphere; Permeability; Tin; Yttrium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2003.816024

Filename

1233317