DocumentCode :
1029270
Title :
FMR study of Gd-Eu-Co alloy thin films
Author :
Wakishima, Osamu ; Uemura, Toshimasa ; Okuno, Hikaru ; Sakaki, Yo
Author_Institution :
Science Education Institute of Osaka Prefecture, Osaka, Japan
Volume :
23
Issue :
5
fYear :
1987
fDate :
9/1/1987 12:00:00 AM
Firstpage :
2996
Lastpage :
2998
Abstract :
A rare earth element is doped in the Gd-Co alloy whose concentration of Co is larger than that of Gd0.20 Co0.80 . We prepared (Gd1-x Cox )1-y Euy alloy thin films ( 
) by the sputtering method. Ferromagnetic resonance(FMR) was done at 300 K and at 77 K. The effective g-value at 77 K was always greater than that at 300 K and it sharply increased at 10 at.%Eu. From this result the ternary system Gd-Eu-Co remains ferrimagnetic. The linewidth 
was about 2 KOe at 77 K in the vicinity of 10 at.%Eu. We applied the Tsuya-Wangsness formula to the ternary system and discussed a possible model to explain the experimental results. The Co moment decreased linearly with increasing Eu concentration because of charge transfer.
) by the sputtering method. Ferromagnetic resonance(FMR) was done at 300 K and at 77 K. The effective g-value at 77 K was always greater than that at 300 K and it sharply increased at 10 at.%Eu. From this result the ternary system Gd-Eu-Co remains ferrimagnetic. The linewidth was about 2 KOe at 77 K in the vicinity of 10 at.%Eu. We applied the Tsuya-Wangsness formula to the ternary system and discussed a possible model to explain the experimental results. The Co moment decreased linearly with increasing Eu concentration because of charge transfer.Keywords :
Ferroresonance; Magnetic films/devices; Amorphous magnetic materials; Chemical industry; Cobalt alloys; Ferrimagnetic materials; Magnetic field measurement; Magnetic films; Magnetic resonance; Saturation magnetization; Sputtering; Transistors;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1987.1065482
Filename :
1065482
Link To Document :
