DocumentCode :
977463
Title :
Magnetic damping and wall mobility in films of the (Eu,Y)3 (Ga,Fe)5 O12 system
Author :
Borghese, Camillo ; De Gasperis, Paolo
Author_Institution :
Instituto di Electronica dello Stato, Solido del Consiglio Nazionale delle Ricerche, Rome, Italy
Volume :
16
Issue :
5
fYear :
1980
fDate :
9/1/1980 12:00:00 AM
Firstpage :
1038
Lastpage :
1040
Abstract :
Several important properties of a family of epitaxial garnet films having formula Euz Y3-z Gat Fe5-t O12 grown by the LPE technique on [111] GGG substrates have been examined in this paper. It has been possible to scan compositions having 
and 
by carefully respecting the film-substrate lattice match condition 
. By measuring and inferring from previous data the gyromagnetic ratio γeff , the saturation magnetization 
, the uniaxial anisotropy field Hu , the Gilbert damping constant α and the exchange stiffness constant 
, it is seen that while the separation between the magnetization (tM ) and the angular momentum (ts ) compensation points is very small, the domain wall mobility is low in the entire range. This suggests that the behavior of α and Hu is dominant over that of γeff .
and by carefully respecting the film-substrate lattice match condition . By measuring and inferring from previous data the gyromagnetic ratio γ , the uniaxial anisotropy field H , it is seen that while the separation between the magnetization (tKeywords :
Magnetic bubble domains; Magnetic bubble films; Damping; Garnet films; Iron; Lattices; Magnetic anisotropy; Magnetic films; Magnetic separation; Perpendicular magnetic anisotropy; Saturation magnetization; Substrates;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1980.1060853
Filename :
1060853
Link To Document :
