Patent ID: 8298355

Claim:
A magnetic alloy represented by the compositional formula: Fe 100-x-y-z-a Co a Cu x B y X z wherein, X is one or more elements selected from the group consisting of Si, S, C, P, Al, Ge, Ga and Be, and, in terms of atomic percent, 1<x≦3, 10≦y≦20, 0<z≦10, 10<a<25 and 10<y+z≦24, and y is greater than z, wherein crystal grains having a crystal grain diameter of 60 nm or less are dispersed at a volume fraction of 30% or more in an amorphous matrix phase and the magnetic alloy has a saturation magnetic flux density of 1.85 T or more and a coercive force of 200 A/m or less.