Magnetic powder and associated manufacturing process, compound magnet

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The magnetic powder is composed of an alloy composition represented by (R1-aDya)x(Fe1-bCob)100-x-yBy (where R is at least one kind of rare-earth element, x is 7.1 - 9.9at%, y is 4.6 - 8.0at%, a is 0.02 - 0.2, and b is 0 - 0.30), wherein the magnet ic powder is constituted from a composite structure having a soft magnetic phase and a hard magnetic phase, and the intrinsic coercive force (Hcj) of the magnetic powder at a room temperature is in the range of 400 - 750kA/m.