Soft magnetic film having high saturation magnetic flux density, thin-film magnetic head using the same, and manufacturing method of the same
   
   

A soft magnetic film is formed of a CoFe alloy having an Fe content in the range of 68 to 80 mass %, thereby having a saturation magnetic flux density of 2.0 T or more. The center lain average roughness of the film surface is 9 nm or less. The soft magnetic film can achieve a corrosive resistant magnetic head with a high recording density.

 
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