DocumentCode :
1032262
Title :
Magnetostrictive properties of Tb.3 Dy.7 (Fe1-x Cox )1.9 and Tb.3 Dy.7 (Fe1-x Nix )1.9
Author :
Clark, A.E. ; Teter, J.P. ; McMasters, O.D.
Author_Institution :
Naval Surface Weapons Center, Silver Spring, MD
Volume :
23
Issue :
5
fYear :
1987
fDate :
9/1/1987 12:00:00 AM
Firstpage :
3526
Lastpage :
3528
Abstract :
Measurements of Curie temperature, magnetic moment and magnetostriction were made on Tb.3 Dy.7 (Fe1-x Tx )1.9 where T = Co and Ni ( 
for Co and 
for Ni). Alloys were prepared using a float zone technique, from which it was possible to grow oriented [112] crystallite samples for 
(T = Co). The Curie temperature peaked near x = .25 (T = Co) and decreased with increasing x (T = Ni). For both alloy systems the room temperature magnetic moment decreased with increasing x. An increase in the rare earth contribution of the magnetostriction of 12% is predicted for the Co substituted alloys with values of x near .25. This increase was not confirmed by the magnetostriction measurements. A decrease in magnetostriction with increasing x was observed for all x. This may be due to a defected platelet structure in the oriented alloys ( 
), or a negative contribution to the magnetostriction from the Fe1-x Cox sublattice.
for Co and for Ni). Alloys were prepared using a float zone technique, from which it was possible to grow oriented [112] crystallite samples for (T = Co). The Curie temperature peaked near x = .25 (T = Co) and decreased with increasing x (T = Ni). For both alloy systems the room temperature magnetic moment decreased with increasing x. An increase in the rare earth contribution of the magnetostriction of 12% is predicted for the Co substituted alloys with values of x near .25. This increase was not confirmed by the magnetostriction measurements. A decrease in magnetostriction with increasing x was observed for all x. This may be due to a defected platelet structure in the oriented alloys ( ), or a negative contribution to the magnetostriction from the FeKeywords :
Magnetostriction; Anisotropic magnetoresistance; Cobalt alloys; Crystallization; Iron; Magnetic anisotropy; Magnetic moments; Magnetic properties; Magnetostriction; Perpendicular magnetic anisotropy; Temperature measurement;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1987.1065761
Filename :
1065761
Link To Document :
