DocumentCode :
806023
Title :
Magnetic Properties of bcc FeRh1-xMx Systems
Author :
Yuasa, S. ; Otani, Y. ; Miyajima, H. ; Sakuma, A.
Author_Institution :
Keio University
Volume :
9
Issue :
6
fYear :
1994
Firstpage :
202
Lastpage :
209
Abstract :
The magnetic properties of ordered bcc FeRh1-xMx alloys (M=Fe, Co, Ni, Pd, Ir and Pt) were studied, in terms of correlations among the antiferromagnetic-ferromagnetic transition temperature T0, Curie temperature, magnetization, and lattice constant. Substitution of the 3d element M for Rh diminishes the transition temperature T0, since the large magnetic moment of the M atom stabilizes the ferromagnetism. Moreover, a first-order antiferromagnetic-paramagnetic transition was observed in an FeRh1-xIrx system. The mechanism of such first-order phase transitions can be explained phenomenologically by introducing magneto-volume coupling into a model based on the SCR theory. The ground state properties of FeRh and FeRh1-xPdx are well explained by first-principle band calculations based on the linearized muffin-tin orbital method.
Keywords :
Antiferromagnetic materials; Cobalt alloys; Couplings; Lattices; Magnetic moments; Magnetic properties; Magnetization; Nickel alloys; Platinum alloys; Temperature;
fLanguage :
English
Journal_Title :
Magnetics in Japan, IEEE Translation Journal on
Publisher :
ieee
ISSN :
0882-4959
Type :
jour
DOI :
10.1109/TJMJ.1994.4565981
Filename :
4565981
Link To Document :
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