Critical behavior of amorphous (Fe1−xMx)90Zr10 alloys with M=Co, Ni, and 0<x<0.04

Abstract
From the critical behavior of the magnetic inhomogeneous (Fe1xMx)90Zr10 amorphous alloys, where M=Co and Ni, the critical exponents α, β, γ, and δ are derived. Their values are rather large, strongly deviating from the theoretical ones in the case of an ordered 3D‐Heisenberg spin system. This behavior is probably due to the magnetically inhomogeneous character of these alloys, as evidenced especially in previous Mössbauer and magnetic studies.