Magnetic film for magnetic head

Abstract

The magnetic film includes an FeCo layer, restrains erasing data by a magnetic field leaked from a magnetic pole, has high saturation magnetic flux density and soft magnetism and writes data with high recording density. The magnetic film for a magnetic head of the present invention comprises: a nonmagnetic layer including at least one selected from a group of Ru, Rh, Ir, Cr, Cu, Au, Ag, Pt and Pd; a magnetic layer including Fe and Co. Anisotropy magnetic field is 0.8 kA/m or more.

1 . A magnetic film for a magnetic head including Fe and Co as main elements, comprising: 
 a body-centered cubic lattice structure, in which intensity ratio of (110) and (211) crystal planes in a film growth direction is I(211)/I(110)=2-100%.    
     
     
         2 . The magnetic film according to  claim 1 , wherein said magnetic film has uniaxial magnetic anisotropy having a easy axis of magnetization and a hard axis of magnetization.  
     
     
         3 . The magnetic film according to  claim 2 , wherein a coercive force of the hard axis of magnetization is 0.8 kA/m or less.  
     
     
         4 . The magnetic film according to  claim 2 , wherein residual magnetization ratio of the hard axis of magnetization is 30% or less.