DocumentCode :
1050530
Title :
Lattice parameter and magnetic moment in 3d transition metal alloys: The origin of invar effects
Author :
Shiga, Masayuki
Author_Institution :
Kyoto University, Kyoto, Japan
Volume :
8
Issue :
3
fYear :
1972
fDate :
9/1/1972 12:00:00 AM
Firstpage :
666
Lastpage :
668
Abstract :
A close relation between the lattice parameter a and magnetic moment μ was found in alloys containing 3d transition metals. The relation can be described by a simple equation: 
. In Fe-Ni alloys, the magnetic term persists above Tc in the nickel rich region and decreases with temperature in the Invar region. This fact is interpreted as meaning that in the nickel rich region, localized atomic moments persist above Tc, while in the Invar region, they collapse above Tc. Many anomalous properties of the Invar alloys are explained as a result of the collapse of localized moments.
. In Fe-Ni alloys, the magnetic term persists above Tc in the nickel rich region and decreases with temperature in the Invar region. This fact is interpreted as meaning that in the nickel rich region, localized atomic moments persist above Tc, while in the Invar region, they collapse above Tc. Many anomalous properties of the Invar alloys are explained as a result of the collapse of localized moments.Keywords :
Invar alloys; Iron-nickel alloys; Magnetization processes; Nickel-iron alloys; Cobalt alloys; Equations; Iron; Lattices; Magnetic moments; Magnetic properties; Magnetic superlattices; Magnetization; Nickel alloys; Temperature;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1972.1067439
Filename :
1067439
Link To Document :
