Low-Temperature Magnetic State of Amorphous Iron--Boron Invar Alloys

The low temperature magnetic properties have been studied in amorphous Invar Fe sub x B sub 100--x alloys (where x = 79, 80, 82, 83 and 85 at.%) in the form of strip. Such alloys are typical of the classical Invar alloys (Fe sub x Ni sub 100--x ), in that the fundamental magnetic condition corresponds to a non-uniform state, the spin structure of which may be considered as a ferromagnetic matrix containing asperomagnetic regions with an effective size equal to several interatomic spacings.