DocumentCode :
1016123
Title :
Influence of Ga-substitution on the magnetostatic waves properties in garnet films.
Author :
Le Gall, H. ; Castera, J.P. ; Hartemann, P. ; Mahasoro, D.
Author_Institution :
CNRS, Laboratorie de Magnétisme et d´´Optique des Solides, Meudon, France
Volume :
22
Issue :
5
fYear :
1986
fDate :
9/1/1986 12:00:00 AM
Firstpage :
990
Lastpage :
992
Abstract :
The design of the magnetostatic waves (MSW) devices depends mainly upon the magnetization 4 π Ms which can be changed either by a temperature shift or by substitution of Fe3+ions by non magnetic ions in the ferrimagnetic garnet. The influence of the Ga substitution on the characteristics of the MSW in YIG films is analyzed. The theoretical values of the temperature coefficient C= Δ f/f. Δ T of the MSW is determined in Y3 Fe5-y Gay O12 with a gallium content up to y=1. The coefficient C can be strongly decreased by a factor higher than 20 for 
. The Ga substitution induces a second effect with a reduction of the MSW bandwidth as predicted by calculation and observed from experiment. Both temperature and gallium substitution influences on the MSW frequency and bandwidth are determined from theoretical model and compared to experimental data.
. The Ga substitution induces a second effect with a reduction of the MSW bandwidth as predicted by calculation and observed from experiment. Both temperature and gallium substitution influences on the MSW frequency and bandwidth are determined from theoretical model and compared to experimental data.Keywords :
Magnetostatic waves; YIG films/devices; Bandwidth; Ferrimagnetic materials; Gallium; Garnet films; Iron; Magnetic devices; Magnetic properties; Magnetization; Magnetostatic waves; Temperature dependence;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1986.1064322
Filename :
1064322
Link To Document :
